Question

41. If acceleration due to gravity is
10 m/s, then the potential energy
of a body of mass 1 kg kept at a
height of 5 m, is
(a) 50 J (b) 100 J (C) 500 J (d) 50 KJ.
42. When a body falls freely
(a) its PE is converted into KE
(b) its KE is converted into PE
(c) its mechanical energy is converted
into heat energy
(d) None of the above
​

Answer 1

Answer:

41.)(a)50J

42.)(a) it's PE is converted into KE.

Answer 2

Answer:

(a) 50 J. (a) its PE is converted into KE

Explanation:

If acceleration due to gravity is

10 m/s, then the potential energy

of a body of mass 1 kg kept at a

height of 5 m, is 50 J

42. When a body falls freely its PE is converted into KE