Question

6. A ball is dropped from a height of 10m. If the energy of the ball reduces by 40% after striking the ground how much high can the ball bounce back?​

Answer 1

Answer:

Total energy of the ball = m g h

=mg10

=100m kgm

2

s

−2

Energy with which it moves up the ground after striking= 60% of the total energy

E=

100

60

×100m kgm

2

s

−2

Height to which the ball will bounce back

h=

m×g

E

=6 meter

Answered By

Explanation:

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