An object moving is undergoing a non accelerated motion. Its rate of change in momentum is
A motor vehicle is moving on a circle with uniform speed. The net acceleration of the vehicle is
The displacement of a particle is given by x = cos2ωt. The motion is
Which one among the following situations is best represented by the velocity – time plot shown above?
White light while passing through a glass prism breaks up into light of different colours because
Bats can know about their prey at a distance even in the night by emitting
