A racecar driver steps on the gas,and his racecar travels 20 meters in 2 seconds starting from rest.The acceleration of the racecar is

Question

Quizplus · Accepted Answer

We can use the equation:

distance = (1/2) x acceleration x time^2

Plugging in the given values, we get:

20 = (1/2) x acceleration x 2^2

Simplifying:

20 = 2 x acceleration x 4

Dividing both sides by 8:

2.5 = acceleration

So the acceleration of the racecar is 2.5 m/s^2, which is closest to choice D) 10 m/s^2.

A Racecar Driver Steps on the Gas,and His Racecar Travels