Physics-
General
Easy
Question
The block A is pushed towards the wall by a distance and released. The normal reaction by vertical wall on the block B v/s compression in spring is given by
The correct answer is:
Related Questions to study
physics-
Equal force F (> mg) is applied to string in all the 3 cases. Starting from rest, the point of application of force moves a distance of 2 m down in all cases. In which case the block has maximum kinetic energy?
Equal force F (> mg) is applied to string in all the 3 cases. Starting from rest, the point of application of force moves a distance of 2 m down in all cases. In which case the block has maximum kinetic energy?
physics-General
physics-
A truck starting from rest moves with an acceleration of 
for 1 sec and then moves with constant velocity. The velocity w.r.t ground v/s time graph for block in truck is ( Assume that block does not fall off the truck)
A truck starting from rest moves with an acceleration of for 1 sec and then moves with constant velocity. The velocity w.r.t ground v/s time graph for block in truck is ( Assume that block does not fall off the truck)
physics-General
physics-
The blocks are in equilibrium. The friction force acting on 10 kg block is :
The blocks are in equilibrium. The friction force acting on 10 kg block is :
physics-General
physics-
The acceleration of 10 kg block when F = 30N
The acceleration of 10 kg block when F = 30N
physics-General
physics-
The maximum acceleration of 5 kg block
The maximum acceleration of 5 kg block
physics-General
physics-
The maximum "F" which will not cause motion of any of the blocks
The maximum "F" which will not cause motion of any of the blocks
physics-General
physics-
When F = 2N, the frictional force between 10 kg block and 5 kg block is
When F = 2N, the frictional force between 10 kg block and 5 kg block is
physics-General
physics-
When F = 2N, the frictional force between 5 kg block and ground is
When F = 2N, the frictional force between 5 kg block and ground is
physics-General
physics-
A block placed on a rough inclined plane of inclination (
=30°) can just be pushed upwards by applying a force "F" as shown. If the angle of inclination of the inclined plane is increased to ( = 60°), the same block can just be prevented from sliding down by application of a force of same magnitude. The coefficient of friction between the block and the inclined plane is
A block placed on a rough inclined plane of inclination ( =30°) can just be pushed upwards by applying a force "F" as shown. If the angle of inclination of the inclined plane is increased to ( = 60°), the same block can just be prevented from sliding down by application of a force of same magnitude. The coefficient of friction between the block and the inclined plane is
physics-General
physics-
The system shown in figure is released
The system shown in figure is released
physics-General
physics-
Block B of mass 100 kg rests on a rough surface of friction coefficient m = 1/3. A rope is tied to block B as shown in figure. The maximum acceleration with which boy A of 25 kg can climbs on rope without making block move is :
Block B of mass 100 kg rests on a rough surface of friction coefficient m = 1/3. A rope is tied to block B as shown in figure. The maximum acceleration with which boy A of 25 kg can climbs on rope without making block move is :
physics-General
physics-
With what minimum velocity should block be projected from left end A towards end B such that it reaches the other end B of conveyer belt moving with constant velocity v. Friction coefficient between block and belt is m
With what minimum velocity should block be projected from left end A towards end B such that it reaches the other end B of conveyer belt moving with constant velocity v. Friction coefficient between block and belt is m
physics-General
physics-
In the arrangement shown in the figure, mass of the block B and A is 2m and m respectively. Surface between B and floor is smooth. The block B is connected to the block C by means of a string pulley system. If the whole system is released, then find the minimum value of mass of block C so that block A remains stationary w.r.t. B. Coefficient of friction between A and B is 
In the arrangement shown in the figure, mass of the block B and A is 2m and m respectively. Surface between B and floor is smooth. The block B is connected to the block C by means of a string pulley system. If the whole system is released, then find the minimum value of mass of block C so that block A remains stationary w.r.t. B. Coefficient of friction between A and B is
physics-General
physics-
A uniform rod of length L and mass M has been placed on a rough horizontal surface. The horizontal force F applied on the rod is such that the rod is just in the state of rest. If the coefficient of friction varies according to the relation m = Kx where K is a +ve constant. Then the tension at mid point of rod is
A uniform rod of length L and mass M has been placed on a rough horizontal surface. The horizontal force F applied on the rod is such that the rod is just in the state of rest. If the coefficient of friction varies according to the relation m = Kx where K is a +ve constant. Then the tension at mid point of rod is
physics-General
physics-
A man is standing on a rough ( = 0.5) horizontal disc rotating with constant angular velocity of 5 rad/sec. At what distance from centre should he stand so that he does not slip on the disc?
A man is standing on a rough ( = 0.5) horizontal disc rotating with constant angular velocity of 5 rad/sec. At what distance from centre should he stand so that he does not slip on the disc?
physics-General
