Anelastic ball is dropped from a height hand it rebound many times from the floor. If the coefficient of
restitution is e, the time interval between the second and the third impact is
8h
h
2h
2) e²
3) e²
4) e2
Answers
Answered by
0
Explanation:
ANSWER
Let v
0
be the velocity with which the ball strikes the Earth first time and v
n
after the nth rebound.
The coefficient of restitution is
e=
v
0
v
1
=
v
1
v
2
=
v
2
v
3
=.....=
v
n−1
v
n
∴e
n
=
v
0
v
1
×
v
1
v
2
×
v
2
v
3
×.....×
v
n−1
v
n
=
v
0
v
n
Here, v
0
=
2gh
and v
n
=
2gH
e
n
=
2gh
2gH
=
h
H
e
2n
=
h
H
⇒H=he
2n
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