Question

steel ball falls from a height of 1m onto a steel plate and jumps upto a height of 0.81m find the coefficient of restitution​

Answer 1

Answer:

The correct option is C

Explanation:

Given

Since v=

(

2as)=

(

2gs)

here g=9.8m/s

2

vfor a 1 m is

1

9.2

v for a .81 m bounce is (81 cm=.81 m)

(

.81×19.2)=0.9

1

9.2

so the cofficient restitution is 0.9