Question

7. An auto's velocity increases uniformly from 3m/s to 25m/s while

covering 90m. Calculate the acceleration. *

Answer 1

3.422 m/s^2

Step-by-step explanation:

A useful relation is ...

v2^2 -v1^2 = 2ad

(25 m/s)^2 -(3 m/s)^2 = 2a(90 m)

(616 m^2/s^2)/(180 m) = a ≈ 3.422 m/s^2

The acceleration is about 3.422 m/s^2.