Home
Class 12
PHYSICS
In the figure at the free end a force F ...

In the figure at the free end a force F is applied to keep the suspended mass of 18 kg at rest. The value of F is-

A

180 N

B

90 N

C

60 N

D

30 N

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 1 SECTION-C :- Pseudo force, Weighing Machine|11 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 1 SECTION-D :- Spring force and spring cutting problems|7 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 1 (SECTION-A:- String Constrained, Wedge Constrained, Newtons Law theory Question, Equillibrium Questions (Normal and Tension), Problems with Acceleration (F=ma), Wedge problems)|27 Videos
  • MODERN PHYSICS -1

    MOTION|Exercise EXERCISE-4 ( LEVEL- II)|39 Videos
  • NLM & FRICTION

    MOTION|Exercise EXERCISE-4 ( LEVEL-II)|15 Videos

Similar Questions

Explore conceptually related problems

In the figure at the free end a force F is applied to keep the suspended mass of 8 kg at rest. The value of F is :

In the figure, at the free end of the light string, a force F is spplied to keep the suspended mass of 18 kg at rest. Then the force exerted by the cirling on the system (assume that the string segments are vertical and the pulleys are light and smooth) is:( g=10(m)/(s^2) )

In the figure shown, a force F is applied at the top of a disc of mass 4 kg and radius 0.25 m. find maximum velue of F for no slipping.

A block of mass 10 kg is placed on a horizontal surface as shown in the figure and a force F = 100 N is applied on the block as shown, in the figure. The block is at rest with respect to ground. If the contact force between block and ground is 25n (in Newton) then value of n is : (Take g = 10 m//s^(2))

A wheel of radius R has an axle of radius R//5 . A force F is applied tangentially to the wheel. To keep the system in a state of "rotational" rest, a force F' is applied tangentially to the axle. The value of F' is

A rod of mass m and length L is hinged at its top end. If the rod is in equilibrium making an angle of 30^(@) with the vertical when a horizontal force F is applied as shown in figure, then the value of F is:

A block of mass 1kg is placed on a rough horizontal surface. A spring is attached to the block whose other end is joined to a rigid wall, as shown in the figure. A horizontal force is applied on the block so that it remains at rest while the spring is elongated by x(x ge (mumg)/(k)) . Let F_(max) and F_(mi n) be the maximum and minimum values of force F for which the block remains in equilibrium. For a particular x, F_(max)-F_(mi n)=2N . Also shown is the variation of F_(max)+F_(mi n) versus x , the elongation of the spring. The value of F_(mi n) , if x=3cm is :

A block of mass 1kg is placed on a rough horizontal surface. A spring is attached to the block whose other end is joined to a rigid wall, as shown in the figure. A horizontal force is applied on the block so that it remains at rest while the spring is elongated by x(xge(mumg)/(k)) . Let F_(max) and F_(mi n) be the maximum and minimum values of force F for which the block remains in equilibrium. For a particular x, F_(max)-F_(mi n)=2N . Also shown is the variation of F_(max)+F_(mi n) versus x , the elongation of the spring. The spring constant of the spring is :

A block of mass 1kg is placed on a rough horizontal surface. A spring is attached to the block whose other end is joined to a rigid wall, as shown in the figure. A horizontal force is applied on the block so that it remains at rest while the spring is elongated by x(x ge (mumg)/(k)) . Let F_(max) and F_(mi n) be the maximum and minimum values of force F for which the block remains in equilibrium. For a particular x, F_(max)-F_(mi n)=2N . Also shown is the variation of F_(max)+F_(mi n) versus x , the elongation of the spring. The coefficient of friction between the block and the horizontal surface is :