Question

A truck is travelling at 64km/h is slow down to 36km/h in 10s. Find the retardation ?

Answer 1

the truck is traveling with a initial velocity of V=64m/s

the truck is travelling with a final velocity of U =36m/h

acceleration = V - U /T

given times 10sec

so. 36-64/10

= -28/10

= -2.8

so the retardation is 2.8 negative

Answer 2

u=64 km/h

v=36km/h

t=10 seconds

we all know that a =v-u/t

putting values

36-64/10

-28/10

so the answer is 2.8

2.8 retardation answer

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