Question

1)A rain drop is falling vertically with a constant velocity.No net force is acting on the drop. 2)When velocity of a body is doubled, its linear momentum becomes twice.Select correct option for above two statements .which is correct​

Answer 1

Answer:

A is correct

Explanation:

Rain drop is falling vertically with constant velocity, then no net force is acting on the rain drop.

Net force equals to zero implies, rate of changes of momentum is zero which means momentum is not changing with time.

Particle of different masses falls with same acceleration, which is acceleration due to gravity on earth.

To change the state (state of rest or state of motion) of a body we need external force. Force = mass x acceleration

Hence more force will be required for heavier body.

Answer 2

Answer:

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