A) climbs up with a uniform speed of 5 m/s
B) climbs down with an acceleration\[4\text{ }m/{{s}^{2}}\]
C) climbs up with an acceleration\[\text{6 }m/{{s}^{2}}\]
D) climbs down with a uniform speed of\[\text{5 }m/{{s}^{2}}\]
Correct Answer: C
Solution :
To move up with an acceleration a, the monkey will push the rope downward with a force \[F=ma=30a\] Now, \[{{T}_{\max }}=mg+ma=30\times 10+30a\] \[\Rightarrow \] \[450=\text{ }300+30a\] \[\Rightarrow \] \[a=5\text{ }m/{{s}^{2}}\] Hence, the rope will break if the monkey climbs up with an acceleration more than 5 \[m/{{s}^{2}}\].
You need to login to perform this action.
You will be redirected in
3 sec
