Given below are two statements, one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A): In simple harmonic motion, the potential energy of the particle is maximum at the extreme positions. Reason (R): At the extreme positions, the velocity of the particle is maximum.

A particle is found to be at rest when observed from a reference frame S1 and the same particle is found to move with a constant velocity when observed from another frame S2. Which of the following s…

Which one of the following statements qualitatively explains the second law of motion?

The linear momentum of a particle is conserved if:

We apply a force of 200 Newtons on a wooden Box and push it on the floor at constant velocity. The marginal friction force will be:

A girl is swinging on a swing in sitting position. When the girl stands up, the period of the swing will :