1. V=62mi/h*1600m/mi*1h/3600s=27.56m/s
a = (V-0)/t = (27.56-0)/2.5 = 11.02m/s^2
2. V=90mi/h * 1600m/mi * 1h/3600s=40m/s
a = (V-0)/t = 11.02 m/s^2. Solve for t.
3. V = (180/90) * 40m/s = 80 m/s.
a = (V-0)/t = 11,02 m/s^2. Solve for t.
4. Yes, with constant acceleration.
You buy yourself a new Lamborghini which can accelerate from 0 to 62 mph in 2.5 seconds.
1.) what is the magnitude of the car's acceleration in SI units?
2.)the latest figures on speeding related car accident fatalities show 32788 deaths per year in the united states. in order to test the accuracy of these statistics empirically like all good scientists, you accelerate from rest to 90 mph. how long will this take?
3.) the maximum speed of the sesto element is 180mph. how long will it take to accelerate from rest to its maximum speed?
4.)will doubling the time always double the change in speed? why?
1 answer
3 answers