Question

A truck travelling at 54 km/h is slow down to 36 km/h in 10 sec. Find the retardation.

a. 5 m/s2
b. 10 m/s2
c. 12 m/s2
d. 4 m/s2
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Answer 1

Explanation:

u= 54km/h =15m/s

v= 36km/h= 10m/s

t= 10sec

a=v - u/t

=10 - 15 /10

= -5/10

Thus,

a= -5/10 m/s².

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