Questions in Work, Energy and Power

Select	Question
	If the K.E. of a body is increased by 300%, its momentum will increase by
	A light and a heavy body have equal kinetic energy. Which one has a greater momentum ?
	If the linear momentum is increased by 50%, the kinetic energy will increase by
	A free body of mass 8 kg is travelling at 2 meter per second in a straight line. At a certain instant, the body splits into two equal parts due to internal explosion which releases 16 joules of energy. Neither part leaves the original line of motion finally
	If the K.E. of a particle is doubled, then its momentum will
	If the stone is thrown up vertically and return to ground, its potential energy is maximum
	A body of mass 2 kg is projected vertically upwards with a velocity of $2\,m\,{\sec ^{ - 1}}$. The K.E. of the body just before striking the ground is
	The energy stored in wound watch spring is
	Two bodies of different masses ${m_1}$ and ${m_2}$ have equal momenta. Their kinetic energies ${E_1}$ and ${E_2}$ are in the ratio
	A car travelling at a speed of 30 km/hour is brought to a halt in 8 m by applying brakes. If the same car is travelling at 60 km/hour, it can be brought to a halt with the same braking force in