Question

A ball of mass 2kg is dropped from a height.what is the work done by its weight in two seconds after the ball is dropped

Answer 1

I think the answer should be 400J

Answer 2

Answer:

answer:- 400 joules

Explanation:

m=2kg

t=2seconds

u=0

v=u+g*t

 =0+10*2

 =20m/s

w=1/2*m*v^2

=1/2*2*20^2

=400 joules

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