Home
Class 12
PHYSICS
A horizontal force F is exerted on a 20 ...

A horizontal force F is exerted on a 20 kg block to push it up an inclined plane having an lnclination of 30º. The frictionalforce retarding the motion is 80 N. For the acceleration of the moving block to be zero, the force F must be-

A

206 N

B

602 N

C

620 N

D

260 N

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 2 SECTION-A:- String Constrained, Wedge Constrained, Newtons Law theory Question, Equillibrium Questions (Normal and Tension), Problems with Acceleration (F=ma), Wedge problems|23 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 2 SECTION-B :- Pulley Block System|7 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 1 SECTION-E:- Static friction, Kinetic friction|13 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

A block of mass 10 kg is kept on a fixed rough (mu=0.8) inclined plane of angle of inclination 30^(@) . The frictional force acting on the block is

A 1 kg block is being pushed against a wall by a force F=75N as shown in the figure. The coefficient of friction is 0.25. The magnitude of acceleration of the block is:

A block of mass m is placed on a smooth inclined plane of inclination theta with the horizontal. The force exerted by the plane on the block has a magnitude

A 30kg box has to move up an inclined plane of slope 30^(@) the horizontal with a unform velocity of 5 ms^(-1) . If the frictional force retarding the motion is 150N , the horizontal force required to move the box up is (g =ms^(-2)) .

A block of mass 10 kg is placed on an inclined plane when the angle of inclination is 30^(@) . The block just begins to slide down the plane. The force of static friction is

A horizontal force F pushes a 4kg block (A) which pushes against a 2kg block (B) as shown The have an acceleration of 3m//s^(2) to the right There is no friction between the blocks and the surface on which they slide. What is the net force B exerts on A .

A block of mass m is lying on an inclined plane. The coefficient of friction between the plane and the block is mu . The force (F_(1)) required to move the block up the inclined plane will be:-

A 10 kg block kept on an inclined plane is pulled by a string applying 200 N force. A 10 N force is also applied on 10 kg block as shown in figure. Find : acceleration of 10 kg block.