A race car starts from rest and travels east along a straight and level track. For the first 5.0 s of the car’s motion, the east

Question

3 years ago

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A race car starts from rest and travels east along a straight and level track. For the first 5.0 s of the car’s motion, the east

ward component of the car’s velocity is given by vx(t)=(0.860m/s3)t2. What is the acceleration of the car when vx=12.0m/s?

Physics

1 answer:

Marrrta [24] · Answer 1 · 2021-12-29T21:14:56+03:00

Answer:

ax = 6.43m/s²

Explanation:

The acceleration is the time derivative of the velocity function ax = dvx(t)/dt

We have been given the velocity function v(t) and also the velocity v = 12.0m/s and we are requested to calculate the acceleration at this time which we don't know.

So the first step is to calculate the time at which the velocity =12.0m/s and with this time calculate the acceleration. Detailed solution can be found in the attachment below.