Question

question from class 9 physics chapter forces and law of motion​​

Answer 1

Answer:

may this answer help you

Answer 2

Answer:

Given

Δv = 4m/s

,t=4 s ,m=1kg

Acceleration is given by

a = Δv/t

a=1 m/s²

Now force is given by

F = ma

F=1 N

Hope this will helps you

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