Answer:
35J
Step-by-step explanation:
The mass of the ball=2.5kg
The initial speed=10m/s
we have to calculate the height= h
s=ut+1/2at^2
h=10*0.2 -1/2*10*0.04
h=2-0.2
h= 1.8m
the potential energy= mgh
= 2.5kg*10*1.8
= 25*1.8
= 35J
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