Question

Q: If energy of a ball falling from height of 10 meters is reduuced by 40%,how high will rebound?

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Answer 1

Answer:

40 upon 100 multiply by 10 meters answer will be 4 meters

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Answer 2

H=10m

g=10m/s^2

Potential energy=mgh=m*10*10

=100*m

Energy reduced = 40%

Energy left=60%

>60% of 100*m

=60/100*100m

=60*m

60m=mgh

60/g=h

h=6metres

Hope it will help u

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