Download the app

Questions  

In order to raise a mass m a man ties it to a rope and passes the rope over a frictionless pulley. He climbs the rope with an acceleration 3g/2 relative to the rope. If the mass of the man is m/2 and the mass of the rope is negligible, the tension in the rope is  

a
3mg2
b
5mg3
c
7mg6
d
9mg7

detailed solution

Correct option is C

given amR= am-aR= 3g2; am =3g2-  aR as man and rope moving in oppsote direction  equation for the  man T-mg2=m2 am=m23g2-  aR  ;   T=5mg4-12maR----1 equation for the mass T-mg=maR----2 solving for T we get T=7mg6

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

In fig., the blocks are of equal mass. The pulley

is fixed. In the position shown, A moves with a speed u and the speed of B is v. Then


phone icon
whats app icon