If a force of constant magnitude acts in direction perpendicular to the motion of a particle, then its

Question

If a force of constant magnitude acts in direction perpendicular to the motion of a particle, then its (A) Speed is uniform (B) Momentum is uniform (C) Velocity is uniform (D) All of these

Tardigrade Admin · Accepted Answer

No component of force is in the direction of motion (as vecF perp vecV) so it cannot change the speed of particle. But velocity cannot be constant because force will change the direction of motion.

Q. If a force of constant magnitude acts in direction perpendicular to the motion of a particle, then its

Speed is uniform

Momentum is uniform

Velocity is uniform

All of these

No component of force is in the direction of motion (as $F ⊥ V)$ so it cannot change the speed of particle. But velocity cannot be constant because force will change the direction of motion.

Q. If a force of constant magnitude acts in direction perpendicular to the motion of a particle, then its

Speed is uniform

Momentum is uniform

Velocity is uniform

All of these

No component of force is in the direction of motion (as F⊥V) so it cannot change the speed of particle. But velocity cannot be constant because force will change the direction of motion.

No component of force is in the direction of motion (as $F ⊥ V)$ so it cannot change the speed of particle. But velocity cannot be constant because force will change the direction of motion.