Q. 65.0( 1 Vote )

A car is being dr A. +4 ms-2

B. ‒4 ms-2

C. ‒0.25 ms-2

D. +0.25 ms-2

Answer :

u (Initial Velocity) = 20 m/sec

v (final velocity) = 0 m/sec (at rest)


time (t) = 5 seconds


v = u + a.t – (i)


a =


a=


a=


a = -4 ms-2


Therefore Deceleration produced is 4 ms-2


Note : Since in this question value of deceleration has been asked,


Don’t get confused with the signs, Deceleration= -(Acceleration).

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