Question

A truck traveling at 54km/h is slow down to 36km/h in 10sec. find the retradation

Answer 1

HELLO DEAR HERE IS YOUR ANSWER

The truck is travelling with a initial velocity of V=54m/s.


The truck is travelling with a final velocity of u=36m/s.

acceleration=V-U/T.




given time =10s.

so. 36-54/10
=-18/10
=-1.8


so. the retardation is 1.8 negative.

HOPE IT HELP YOU

Answer 2

Hey!

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Initial velocity (u) = 54 km/h = 15 m/s
Final velocity (v) = 36 km/h = 10 m/s
Time taken (t) = 10 s
Retardation (a) = ?

We know,

v - u = at

10 - 15 = a × 10

-5 = 10 a

-5/10 = a

-1/2 = a

a = - 0.5 m/s^2

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Hope it helps...!!!