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Class 11 NEET Physics Laws of Motion Questions
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© examsnet.com
Question : 67
Total: 75
A monkey is decending from the branch of a tree with constant acceleration. If the breaking strength is
75
%
of the weight of the monkey, the minimum acceleration with which monkey can slide down without branch is
( 1993 )
g
3
g
4
g
4
g
2
Validate
Solution:
Let
T
be the tension in the branch of a tree when monkey is decending with acceleration
a
Thus,
m
g
−
T
=
m
a
also,
T
=
75
%
of weight of monkey
T
=
(
75
100
)
m
g
=
3
4
m
g
∴
m
a
=
m
g
−
(
3
4
)
m
g
=
1
4
m
g
or
a
=
g
4
© examsnet.com
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