A car accelerates uniformly from rest to a speed of 40 mi/h in 10 s. Find the acceleration and distance the car travels during this time

accelerates-speed

#1

A car accelerates uniformly from rest to a speed of 40 mi/h in 10 s.

Find the acceleration and distance the car travels during this time.

Answer:

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We know that acceleration is the change in velocity divided by the time the change takes. So in this case, we have 40 mi/h divided by 10 seconds. To make our units compatible, we note that 40 mi/hr = 0.1112 mi/second. SO, 0.1112 mi/s divided by 10 s gives us an acceleration of 0.01112 mis^(-2).