Q. In which of the following cases forces may not be required to keep the
A) Particle going in a circle
B) Particle going along a straight line
C) The momentum of the particle constant
D) Acceleration of the particle constant
Explanation
(c) If momentum remains constant, the force will be zero because
$F = \frac{dp}{dt}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.