Question

Ques-19 Find the initial velocity of a car which is stopped in 10 second by applying brakes.
Retardation due to brakes in 2.5m/s.
20m/s
(b) 25m/s
(c) 30m/s
(d) 40m/s​

Answer 1

Answer:

25 m/s

Explanation:

v = 0 m/s

t = 10 sec

a = -2.5 m/s

v = u + at

u = 25 m/s