A bullet of mass 20g is found to pass two points 30m apart in 4 s? Assuming the speed to be constant, find its kinetic energy?

A bullet of mass 20g is found is found to pass two points 30cm apart in a time interval of 4s. Calculate the kinetic energy of the bullet if it moves with constant speed.

A bullet of mass 20g fired from a rifle is found to cover the distance of 30m in 4 s. Assuming that the speed of the bullet to be constant, find its kinetic energy.

A neutron, one of the constituents of a nucleus, is found to pass two points 60 metres apart in a time interval of 1.8 xx 10^(-4) sec . The mass of the neutron is 1.67 xx 10^(-27) kg . Assuming that the speed is constant, its kinetic energy is

A bullte of mass 10 gm in moving with speed 400 m//s . Find its kinetic energy in calories?

A bullte of mass 10 gm in moving with speed 400 m//s . Find its kinetic energy in calories?

A bullet of mass 50 g enters a block of thickness t with speed of 500 ms^-1 . It emerges with 4% of its initial kinetic energy. The emergent speed is

A bullet of mass 50 g enters a block of thickness t with speed of 500 ms^-1 . It emerges with 4% of its initial kinetic energy. The emergent speed is