It is easier to stop a tennis ball as compared to a cricket ball, when both the travelling with the same velocity.

Give scientific reasons: It is easier to stop a tennis ball as compared to a cricket ball, when both are travelling with, the same velocity.

A square is hit elastically and normally by n balls per unit time , all the balls having the same mass m , and moving with the same velocity v. then the force acting on surface is

A ball is dropped into coaltar. Its velocity time curve will be

What will happen in the following case A fast cricket ball strikes the stumps.

An ice block contains a glass ball. When the ice melts within the water containing vessel, the level

Show that Radius of gyration for a uniform disc is small as compared to Radius of gyration for a uniform ring, both of same mass M and same radius R.

Choose the correct options A ball of mass 250 g moving with 20 m//s strikes a vertical wall and rebounds along the same line with a velocity of 15 m//s . If the time of contact is 0.1 s, the force exerted by the wall on the ball is

Answer the following : When big grain storage container is required to slide on the ground , it becomes easier if two persons push it rather than one person . When the force is applied by both in the same direction , the movement is easy . You may have experienced this . what do we understand from this example ?

A string of length 2 m is fixed at both ends. If this string vibrates in its fourth normal mode with a frequency of 500 Hz then the waves wouldf travel on it is with a velocity of