Question

The decrease in the potential energy of a ball of
mass 20 kg which falls from a height of 50 cm
is
a) 968)
b)98)
c) 1980)
d) None of these​

Answer 1

Explanation:

P.E.=mgh=20×0.5×9.8

=98J

Answer 2

Please mark as brainliest answer

Explanation:

Correct answer is B