Question

Pls help in out in this sum

Answer 1

Answer:

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Step-by-step explanation:

u= 30 km/h

v= 10 km/h

t= 10 s

a=?

By using first equation of motion

v = u+at

10=30+a.10

10-30=10a

-20=10a

a= -2 km/ hr...( retardation)

hope it helps you ✌️