a cat of 4kg jumps at 20m/s speed from 30m high building. What is the kinetic energy of the cat is before it touchee the ground?
plz dont spam, give answer with explanation.
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Answer:
1200J
Explanation:
mass 4kg
u=20m/s
height= 30m
g= 10m/s^2
potential energy of body Is equal to kinetic energy
potential energy= mgh
= 4*10*30
=1200J
so kinetic energy = 1200J
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