Work, Power and EnergyHard
Question
A body of mass 2 kg falls from a height of 20 m. What is the loss in potential energy :-
Options
A.400 J
B.300 J
C.200 J
D.100 J
More Work, Power and Energy Questions
A heavy body moving with a velocity 20 ms-1 and another small object at rest undergo an elastic collision. The latter wi...If the values of force and length are increased four times then the unit of energy will increase by-...A body of mass 4m at rest explodes into three pieces. Two of the pieces each of mass m move with a speed n each in mutua...Two masses of 1 g and 4 g are moving with equal kinetic energies. The ratio of the magnitudes of their momenta is...If the kinetic energy is increased by 300%, the momentum will increase by :...