Question

A ball of mass 1 kg falls from rest. Find its maximum kinetic energy and the maximum velocity which can be acquired by the object​

Answer 1

From work energy theorem work done by weight + work done by air=ΔKE

W

air

=ΔKE−W

(weight)

=

2

1

mv

2

−mgh

=

2

1

×5×(10)

2

−5×10×20

=−750J