Question

A vehicle is moving on a straight road with a speed 15m/s comes to rest in 3s . Find the deceleration.

A) 10/3 m/s2 B) 15/3 m/s2

C) 20/3 m/s2

D) 25/3 m/s2
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Answer 1

Answer:

v=u+at

0 = 15+a×3

a= -15/3= -5 m/s^2

option B