C. Six seconds. Miles per hour to Foot per second conversion example. A typical tractor-trailer or other large truck can weigh as much as 80,000 pounds by law. Miles per hour (symbol mph or mi/h) is unit of speed, expressing the number of statute miles covered in one hour. When calculating the comparative speed between 60 feet (High School and above) and 46 feet (Little League distance), you are really comparing the amount of time that it takes for the ball to go 46 feet rather than 60 feet. Speeds below Mach 1 are called subsonic, between Mach 0.8-1.2 Transonic and above Mach 1.2 Supersonic. Conversion Mile per hour to Feet per second (mph to fps). You can stop within 150 Feet B. Four seconds. Normal driver reaction time is about .75 seconds, including time to move your foot to the brake (see link). A kilometer per hour is a unit of speed. When driving a 50-foot truck at 50 mph, your minimum following distance should be: Answers. Please enter numbers only. Unit Descriptions; 1 Foot per Second: Feet per Second. This is the original speed of the vehicle. July 30, 2020. It is currently the standard unit used for speed limits, and to express speeds generally, on roads in the United Kingdom and the United States. B. C. Six seconds. Assuming zero reaction time, the car will stop at 50 feet. -65 MPH at 60'6" would be roughly the same reaction time as about 32-33 MPH at 30 feet. Therefore, one could say that it seems like 140 mph at 30 feet, but in reality, the ball still travels at 70 mph. As you can see from the graph above, you'd have to fall from higher than 50 meters above the ground for this to really matter much, and at that point, you'd be in enough trouble to not care much. 30 mph 30*5280 feet per hour, 1 mile = 5280 feet 500 in how many hours 500/(30*5280) hours =0.00316 hours 0.00316 hours * 3600 , 1 hour = 3600 seconds) The United Kingdom also uses this on the roads although officially the … When driving a 50-foot truck at 50 mph, you should maintain a following distance of at least: Answers. that allows you to stop within this distance or about 50 mph. This corresponds to about 33 feet at 30mph. 1 Mile per Hour: A distance of one international mile or 1 760 international yards or exactly 1609.344 meters travelled in one hour or exactly 3 600 seconds. Choose an altitude: Sea Level 10,000 feet 20,000 feet 30,000 feet 40,000 feet or higher 20 mph: 20 ft. (6 m) 20 ft. (6 m) 40 ft. (12 m) 30 mph: 30 ft. (9 m) 45 ft. (14 m) 75 ft. (23 m) 40 mph: 40 ft. (12 m) 80 ft. (24 m) 120 ft. (36 m) 50 mph: 50 ft. (15 m) 125ft. Miles per hour. The conversion can be done with a calculator, or use our online miles per hour to feet per second converter above. B. Unit Descriptions; 1 Mile per Hour: A distance of one international mile or 1 760 international yards or exactly 1609.344 meters travelled in one hour or exactly 3 600 seconds. For example, 1 foot per second can be written as 1 ft/s, 1 ft/sec, or 1 fps. 45 mph to 50 mph is way too fast, but it wouldn't be the first time that a cop's estimate of speed was way off. So, if you were to take your same 65 MPH fastball from 30 feet, and throw it from 60'6", it will give the batter the same reaction time as if you threw about 32-33 MPH from 30 feet. TECHNICAL SERVICES- Forensic Engineering -360-576-8880 What are the static, dynamic, stagnation, hydrostatic, and total pressures at the point upstream on the stagnation streamline? Move out from the 30 mph line until you hit the curve at about 40'. Your headlights will let you see about 400 feet ahead. (a) Assuming that the ground is level, determine graphically which ball travels the farthest horizontally. This is a measurement of speed typically used in non-metric countries for transport such as the USA. A plane flying Mach 1.0 at sea level is flying about 1225 km/h (661 Knots, 761 mph), a plane flying Mach 1.0 at 30000 ft is flying 1091 km/h (589 knots, 678 mph) etc. Miles per hour. 1. The frequency distribution of wind velocity recorded at the 30-foot level is shown in Figure 1. Atorpedo travels at 50 mph, 30 ft under the surface, as shown in Figure 8.11A. Add the length of the skid mark -60'- go out to the 100' mark and then up until you hit the curve again at about 46-48 mph. When traveling at speeds below 40 mph, you should maintain at least one second of following distance for every 10 feet of your vehicle's length. Reduce the speed - the speed at the plate averages 9 mph slower than 50ft mark for 100 mph (say 4 mph avg for pros, down to 2mph) These factors result in a net reduction of the reaction time for a 100 mph fastball by 33 milliseconds (or 8%) to .380 seconds. Five seconds. speed in miles per hour 0 10 30 50 70 85 95 100 105 110 113 116 118 Distance fallen (feet) 0 16 62 138 242 366 504 652 808 971 1,138 1,309 1,483 * This is an approximation. A box of Kleenex could kill you C. Your vision blurs Braking Distance = 281.25 Reaction Distance = Speed, Calculate Stopping Distance: Stopping Distance = 75 + 281.25 Stopping Distance = 356.25 feet Therefore, if you are driving 75 mph, it will take you approximately 356.25 feet to stop your car. ... fps↔cm/s 1 fps = 30.48 cm/s fps↔mm/s 1 fps = 304.8 mm/s fps↔um/s 1 fps = 304800.000001 um/s fps↔mi/s 1 mi/s = 5280.0016334847 fps Feet per second can be abbreviated as ft/s, and are also sometimes abbreviated as ft/sec or fps. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour. In SI units 0.3048 meters per second. mph: knots: knots: m/s (meters per second) m/s: ft/s (feet per second) ft/s: km/h (kilometers per hour) km/h What are the formula for the wind speed conversion script? 33ft plus 50ft (stopping distance) = 88ft Therefore the SUV will hit the box. A passenger vehicle weighing 4,000 pounds, traveling under ideal conditions at a speed of 65 miles per hour would take 316 feet … 2. To convert from mph to fps we combine the two operations, therefore we can say we multiply by 5280/3600, or about 1.466667. It would be possible to be approaching the turn at 45 mph or so and then braking hard to 30 mph or so to make the turn, but a street car could not take a 65 foot radius turn at 45 mph. In a very heavy rain, snowstorm or thick fog, you may not see how much further ahead. The long-duration winter storm was blasting the Northeast on Monday and, by the time it's all over, some parts of Pennsylvania, New Jersey and New York could have more than 40 … Explanation. is 660 mph. 55.00 mph = 80.67 fps: 55.25 mph = 81.03 fps: 55.50 mph = 81.40 fps: 55.75 mph = 81.77 fps: 55.01 mph = 80.68 fps: 55.26 mph = 81.05 fps: 55.51 mph = 81.41 fps Three golf balls are hit simultaneously into the air at 132 feet per second (90 mph) at angles of 30°, 50°, and 70° with the horizontal. The United Kingdom also uses this on the roads although officially the … At 30 mph, it can take about 200 feet to stop. What is the pressure at the stagnation point on the nose of the torpedo? [2] 40,000 feet is the usual altitude. Most passenger vehicles are about 3,000 – 4,000 pounds. Velocity unit conversion between mile/hour and foot/second, foot/second to mile/hour conversion in batch, mph fps conversion chart. A. Fou seconds. -2->, 85 80 70 60 g 50 ell c:r ~ ell Lt 40 30 20 10 o 2 4 6 8 10 12 14 16 Wind velocity at 30-ft level, mi/h Fi gure 1. Something traveling at one kilometer per hour is traveling about 0.278 meters per second, or about 0.621 miles per hour. It always occurs when going up an incline, sometimes at lower speeds (30-40 mph) but more frequently at 50-65 mph… For example, 1 foot per second can be written as 1 ft/s, 1 ft/sec, or 1 fps. This is a measurement of speed typically used in non-metric countries for transport such as the USA. Probability = 1. Skydivers, however, should go read the Wikipedia article. In formal expressions, the slash, or solidus (/), is used to separate units used to indicate division in an expression. I get an intermittent rhythmic vibration in my 2010 Ford F150. 1 mph = 0.447 04 m/s. For example, 1 foot per second can be written as 1 ft/s, 1 ft/sec, or 1 fps. Explanation. A kilometer per hour is a unit of speed. Five seconds. You can put this solution on YOUR website! For an atlatl, the effective range is perhaps 50 yards, and over 30 yards they will start losing velocity, which means less kinetic energy. 1 mph = 0.447 04 m/s. Kinetic energy is often used as the standard for projectile effectiveness, but a baseball (5.12 ounces moving at 95 mph) has 87 foot pounds of kinetic energy. (38 m) 175 ft. (53 m) 60 mph: 60 ft. (18 m) 180 ft. (55 m) 240 ft. (73 m) 70 mph wind speeds faster than 12 mph at the 30-foot level. At speeds below 40 mph, you should allow at least one second of following distance for every 10 feet of your vehicle. D. Eight seconds. Next, let's look at an example showing the work and calculations that are involved in converting from feet per hour to miles per hour (ft/h to mph). A. to the TECHNICAL SERVICES Homepage . If you're lying belly-to-the-earth, you'll only travel about 195 km/h (122 miles per hour). That is almost half a city block in length. feet per second* 0 16 46 76 104 124 138 148 156 163 167 171 174 Approx. The BlackTea is finally a 50 mph electric moped that’s priced inline with gas bikes in US/EU ... instead opting for motorbike foot pegs. 1 Mile per hour = 1.60934 kilometers per hour = 0.44704 meters per second (SI base unit). 1 Mile per hour = 1.60934 kilometers per hour = 0.44704 meters per second (SI base unit). How fast should you drive for a safe stop. These values are calculated from the Ensewiler Formula, P = 0.00256 V^2, where V = Wind Velocity in MPH and P = the Differential Pressure across the window in Pounds per Square Foot (PSF).The equation assumes the direction of wind is perpendicular to the window and there are no effects from surrounding terrain or the shape of the building in which it is installed. A.