Question

The final velocity of car is 20 m/s. The car is accelerating at a rate of 2.5m/s over a 10 seconds period of time. What is the initial velocity of the car?

Answer 1

-5m/s

Step-by-step explanation:

Since

acceleration=final velocity-initial velocity/time

2.5m/s^2=20m/s- initial velocity/10s

2.5m/s^2×10s= 20m/s -initial velocity

25m/s=20m/s - initial velocity

Initial velocity=20m/s-25m/s

= -5m/s