Answer to Question #135756 in Physics for arny

Question

How far will a 1300 kg car travel while accelerating from rest to 48 m/s if it took 3.28 seconds?

Answer 1

In this problem, we don't need the mass of the car. Why? Remember that acceleration is a result of force divided by mass. Acceleration is what determines how quickly something gains speed. Therefore, all we need here is the speed and time. The distance traveled under accelerated motion from rest can be found like this:

$$d=\frac{vt}{2}=\frac{48\cdot3.28}{2}=78.7\text{ m}.$$