Acar traveling at 7 m/s accelerates uniformly at 2.5 m/s to reach a speed of 12 m/s. how long does it take for this acceleration to occur?

There is one mistake in the question as unit of acceleration is not written correctly.The correct question is here

A car traveling at 7 m/s accelerates uniformly at 2.5 m/s² to reach a speed of 12 m/s. How long does it take for this acceleration to occur?

time taken =2 seconds

Explanation:

Given Data

Initial Speed Vi= 7 m/s

Final Speed Vf=12 m/s

Acceleration a= 2.5 m/s²

To find

Time taken for this acceleration

Solution

As we know that

Final velocity=Initial velocity + acceleration×time

So car takes 2 seconds for this acceleration to occur

d eras and periods

that would be because of both gravity and friction. so     c