Question

A car moving with velocity of 10m/s accelerates uniformly at 2 m/s2. What is the velocity after travelling 200m

Answer 1

Answer:

After travelling 200 m, it's velocity is 30 m/s.

Explanation:

Acceleration a = 2m/s^2

Initial velocity u = 10 m/s

distance S = 200 m

Using 3rd equation of motion,

v^2 = u^2 + 2aS

v^2 = ( 10 )^2 + 2 × 2 × 200

v^2 = 100 + 800 = 900

Final velocity v = √900

= 30 m/s