Cengage JEE Mains Physics by B.M Sharma
A block mass m is kept on an inclined plane of a lift moving down with acceleration of 2 ms^−2 . What should be minimum coefficient of friction to let the block move down with constant velocity?
20
Oct
A block mass m is kept on an inclined plane of a lift moving down with acceleration of 2 ms^−2 . What should be minimum coefficient of friction to let the block move down with constant velocity? A block mass m is kept on an inclined plane of a lift moving down with acceleration of [...]
A lift is moving upwards with a uniform velocity v in which a block of mass m is lying. The frictional force offered by the block, when coefficient of friction is μ = 0.5 will be :-
20
Oct
A lift is moving upwards with a uniform velocity v in which a block of mass m is lying. The frictional force offered by the block, when coefficient of friction is μ = 0.5 will be :- A lift is moving upwards with a uniform velocity v in which a block of mass m is [...]
In the pulley arrangement shown in Fig the pulley p2 is movable .Assuming the coefficient of friction between m and surface to be μ the minimum value of M for which m is at rest is
20
Oct
In the pulley arrangement shown in Fig the pulley p2 is movable .Assuming the coefficient of friction between m and surface to be μ the minimum value of M for which m is at rest is In the pulley arrangement shown in Fig the pulley p2 is movable .Assuming the coefficient of friction between m [...]
Two blocks (m and M) are arranged as in figure. There is friction between ground and M only and other surfaces are frictionless. The coefficient of friction between ground and M is u = 0.25. The maximum ratio of m and M (m/M) so that the system remains is at rest –
20
Oct
Two blocks (m and M) are arranged as in figure. There is friction between ground and M only and other surfaces are frictionless. The coefficient of friction between ground and M is u = 0.25. The maximum ratio of m and M (m/M) so that the system remains is at rest – A block of [...]
A triangular prism of mass M with a block of mass m placed on it is released from rest on a smooth inclined plane of inclination θ. The block does not slip on the prism. Then:
20
Oct
A triangular prism of mass M with a block of mass m placed on it is released from rest on a smooth inclined plane of inclination θ. The block does not slip on the prism. Then: A triangular prism of mass M with a block of mass m placed on it is released from rest [...]
In the Fig, the block of mass m is at rest relative to the wedge of mass M and the wedge is at rest with respect to ground. This implies that
20
Oct
In the Fig, the block of mass m is at rest relative to the wedge of mass M and the wedge is at rest with respect to ground. This implies that In the fig the block of mass m is at rest relative to the wedge of mass M and the wedge is at rest [...]
A uniform chain is placed at rest on a rough surface of base length 1 and height h on an irregular surface as shown in figure Then the minimum coefficient of friction between the chain and the surface must be equal to
20
Oct
A uniform chain is placed at rest on a rough surface of base length 1 and height h on an irregular surface as shown in figure Then the minimum coefficient of friction between the chain and the surface must be equal to A block of mass m if coefficient of friction between the block and [...]
If the coefficient of friction between all surface figure is 0.4 then find the minimum force F to have equilibrium of the system.
20
Oct
If the coefficient of friction between all surface figure is 0.4 then find the minimum force F to have equilibrium of the system. If the coefficient of friction between all surface figure is 0.4 then find the minimum force F to have equilibrium of the system. October 20, 2020 Category: Cengage JEE Mains Physics by [...]
Block A as shown in Fig weighs `2.0 N` and block B weighs `6.0 N` The coefficient of kinetic friction between all surface is `0.25` Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed if A and B are connected by a light , flexible cord passing around a fixed, frictionless pulley.
20
Oct
Block A as shown in Fig weighs `2.0 N` and block B weighs `6.0 N` The coefficient of kinetic friction between all surface is `0.25` Find the magnitude of the horizontal force necessary to drag block B to the left at constant speed if A and B are connected by a light , flexible cord [...]
For the situation shown in Fig the block is stationary w.r.t. inclined fixed in an elevator the elevator is having an acceleration of 5–√a0 whose components are shown in the figure the surface is rough and coefficient of static friction between the inclined and block is μ Determine the magnitude of force exerted by inclined on the block (Takea0=g/2 and θ=37∘,μs=0.2)
20
Oct
For the situation shown in Fig the block is stationary w.r.t. inclined fixed in an elevator the elevator is having an acceleration of 5–√a0 whose components are shown in the figure the surface is rough and coefficient of static friction between the inclined and block is μ Determine the magnitude of force exerted by inclined [...]