Home
Class 11
PHYSICS
A string is wrapped round a log of wood ...

A string is wrapped round a log of wood and it is pulled with a force F as shown in the figure.

A

Tension T in the string increases with increase in `theta`

B

Tension T in the string decreases with increase in `theta`

C

Tension `T gt F` if `theta gt pi/6`

D

Tension `T gt F ` if `theta gt pi//4`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A wooden block of mass m resting on a rough horizontal table is pulled by a force F as shown in the figure. If mu is the coefficient of friction between block and table, its acceleration will be

A solid sphere of mass M and radius R is pulled by a force F as shown in figure . If the sphere does not slip over the surface , then frictional force acting on the sphere is

A wheel of radius 10 cm can rotate freely about its centre as shown in figure. A string is wrapped over its rim and is pulled by a force of 5.0 N. It is found that the torque produces an angular acceleration 2.0 rad s^-2 in the wheel. Calculate the moment of inertia of the wheel.

Two blocks of masses M and xM are pulled vertically upward with force F as shown in the figure . If the tension in string connecting two blocks is F/3 then find the value of x .

A wheel of radius 20 cm and moment of inertia 1 kgm^2 can rotate about its centre.A string is wrapped over its rim and is pulled by a force 'F' tangential to the rim of wheel.If angular acceleration produced is 2 rad/s^2 then the value of force 'F' is

A cylinder of weight W and radius R is to be raised onto a horizontal step of height h as shown in Fig. A rope is wrapped around the cylinder and pulled horizontally with force F . Assuming the cylinder does not slip on the step, find the minimum force F necessary to raise the cylinder.

A mouse is placed around a plug around a log and used to pull it with a force F Then the tension of the ropes forming the loop depend on the magnitude of the angle theta is T=F/(x cos ((theta)/2)) Find the value of the 'x'

Two blocks of masses 10 kg and 20 kg are connected by a massless string and are placed on a smooth horizontal surface as shown in the figure. If a force F=600 N is applied to 10 kg block, then the tension in the string is

Three blocks of masses m, 3m and 5m are connected by massless strings and pulled by a force F on a frictionless surface as shown in the figure below. The tension P in the first string is 16N. If the point of application of F is changed as given below. The values of P' and Q' shall be

A spool is pulled horizontally on rough surface by two equal and opposite forces as shown in the figure. Which of the following statements are correct?