Question

A certain particle undergoes erratic motion. At every point in its motion, the direction of the particle's momentum is always

A

the same as the direction of its velocity

B

the same as the direction of its acceleration

C

the same as the direction of its net force

D

the same as the direction of its kinetic energy

Easy

Solution

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Correct option is
A

the same as the direction of its velocity

Linear momentum () of a body of mass m and velocity is expressed as:  
Since, is a vector quantity and its direction is defined by the direction of , it always has the same direction as .

Solve any question of Laws of Motion with:-

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