Question

A force of 12 N starts acting on a body kept at rest. Find the momentum of the

body at 1 s, 2 s and 6 s after the force starts acting​

Answer 1

Hey mate ..

Here is your answer-

Given,

force = 12N

t1 = 1 sec

t2 = 2 sec

t3 = 6 sec

the momentum of body = ?

A/C to Newton's second law...

Force = ma

= m × v/t ( a= v/t )

= mv / t ( momentum = mv)

Force = momentum / time

Force = Momentum / time

1) t = 1 sec

Momentum = force × time

= 12 × 1

= 12 N/sec

2) t = 2 sec

= 12 × 2

= 24 N/sec

3) t = 6 sec

= 12 × 6

= 72 N/sec

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