Question

The velocity of a body of mass 50 kg, moving at a uniform acceleration becomes 7 m/s from 4 m/s in 6 sec. Calculate the initial and final momentum of the body and the force applied on it.​

Answer 1

Answer:

Hello

Initial momentum= 200 kgm/s

Final momentum = 350 kgm/s

Force applied= 25N

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Answer 2

Answer:

initial momentum = 200

final momentum= 350

force applied= 25N

Explanation:

Given,

mass = 50 kg.

initial velocity = 4 m/s

final velocity = 7 m/s

we have to calculate initial and final momentum and also the force applied on the object.

we know that,

momentum= mass × velocity

initial momentum = mass × velocity

= 50 × 4

= 200

Now, final momentum= mass × velocity

= 50 × 7

= 350

It's time for the force,

F = mass × acceleration

= 50 × 7 - 4

= 50 × 3

= 150 N

Here we have time 6 seconds

= 150÷6

= 25 N