Laws of MotionHard
Question
A string is wrapped round a log of wood and it is pulled with a constant force F as shown in the figure.
Options
A.tension T in the string increases with increase in θ
B.tension T in the string decreases with increase in θ
C.tension T > F if θ > π/3
D.tension T > F if θ > π/4
Solution
F = 2 T cos θ T = 
θ↑ cos θ↓T↑
on increasing θ, cos θ decreases and hence T increases.
Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
A sphere of mass m is kept in equilibrium with the help of several springs as shown in the figure. Measurement show that...Two blocks of masses 10 kg and 20 kg are connected by a light spring as shown. A force of 200 N acts on the 20 kg mass a...When a body is in equilibrium :-...In the Figure, the pulley P moves to the right with a constant speed u. The downward speed of A is vA, and the speed of ...Two blocks of masses M1 and M2 are connected to each other through a light spring as shown in figure. If we push mass M1...