Question

A particle of mass $m$ is acted on by two forces of equal magnitude $F$ maintaining their orientation relative to the velocity $v$ as shown in figure. The momentum of the particle :

• A. increases in (a)
• B. decreases in (b)
• C. only the direction changes in (c)
• D. All of the above

Answer 1

The correct option is D All of the above

In figure (a),

The direction of force is same as the direction of momentum is same, so the momentum of particle is increases.

In figure (b),

The direction of force is opposite to the direction of momentum, so the momentum of the particle is decrease.

In figure (c),

The direction of force is perpendicular to the direction of momentum, so only the direction o momentum of particle is change.

The correct option is D.