Laws Of Motion Question 273
Question: A monkey is descending 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 breaking the branch is
Options:
A) g
B) $ \frac{3g}{4} $
C) $ \frac{g}{4} $
D) $ \frac{g}{2} $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Let T be the tension in the branch of a tree when monkey is descending with acceleration a.
Then $ mg-T=ma $ ;
and $ T=75% $ of weight of monkey
$ \therefore ma=mg-( \frac{75}{100} )mg=( \frac{1}{4} )mg\text{ or }a=\frac{g}{4.} $
