A certain particle undergoes erratic motion. At very point in its motion the direaction of the particle' s momentum is always .

A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved?

A particle undergoes uniform circular motion. About which point on the plane of the circle, will the angular momentum of the particle remain conserved?

Acceleration of a particle under projectile motion at the highest point of its trajectory is :