Potential energy due to gravitational force possessed by the body is given by the expression:
mgh
mg/h
mgh2
12gh
Hence, the correct answer is option (A) mgh.
(a) Work is said to be done by a force only when _________
(b) Work done = Force × _________
(c) The energy of a body is its capacity to do ______
(d) The S.I. unit of energy is ______
(e) The potential energy of a body is due to its ______ and kinetic energy of body is due to its ______
(f) Gravitational potential energy U = mass × force of gravity on unit mass × _________
(g) Kinetic energy = 12× mass ×_________
(h) Power P = ______ / time taken.
(i) The S. I. unit of power is ______
(j) 1 H.P. = ______ W
What is meant by the gravitational potential energy ? Derive an expression for it for a body placed at a height above the ground.