A child places a picnic basket on the outer rim of a marry go round that has a radius of 4m and revolves once in every 24s .the minimum co-efficient of static friction for the basket to stay on the marry go round is `1/N^2` find N

A merry go round has a radius 4 m and completes a revolution in 2 seconds. Then acceleration of a point on its rim is

A cubical block of mass M vibrates horizontally with amplitude of 4.0 cm and a frequency of 2.0 Hz. A small block of mass is placed on the bigger block. In order that the smaller block does not side on the bigger block, the minimum value of the coefficient of static friction between the two blocks is (0.16x). Find the valule of x(Take pi^(2) =10 and g=10m/ s^(2) )

A cubical block of mass M vibrates horizontally with amplitude of 4.0 cm and a frequency of 2.0 Hz. A small block of mass is placed on the bigger block. In order that the smaller block does not side on the bigger block, the minimum value of the coefficient of static friction between the two blocks is (0.16x). Find the valule of x(Take pi^(2) =10 and g=10m/ s^(2) )

A block of mass 1kg is placed on the periphery of a rotating rough circular table of radius 50cm as shown in the figure.Angular velocity of the table is 4 rad/s.The minimum value of coefficient of friction between the contact such that there is no relative slipping is (g= 10 m/s^2)

A block of 7 kg is placed on a rough horizontal surface and is pulled through a variable force F(in N) =5t, where 't' is time in second, at an angle of 37^(@) with the horizontal as shown in figure. The coefficient of static friction of the block with the surface is one. if the force starts acting at t=0 s, find the time at which the block starts to slide. (Take g=10 m//s^(2) )

A block of 7 kg is placed on a rough horizontal surface and is pulled through a variable force F(in N) =5t, where 't' is time in second, at an angle of 37^(@) with the horizontal as shown in figure. The coefficient of static friction of the block with the surface is one. if the force starts acting at t=0 s, find the time at which the block starts to slide. (Take g=10 m//s^(2) )

A 42 kg slab rests on a frictionless floor A 9.7 kg block rests on the top of the slab as shown in the figure. The co-efficient of static friction between the block and the slab is 0.53, while the co-efficient of kinetic friction is 0.38. The 9.7 kg block is acted upon by a horizontal force of 110 N. What are the resulting accelerations of (a) the block, and (b) the slab? (Take g=9.8m//s^(2) )

A coin is placed at the edge of a horizontal disc rotating about a vertical axis through its axis with a uniform angular speed 2 rad s^(-1) . The radius of the disc is 50 cm. Find the minimum coefficient of friction between disc and coin so that the coin does not slip. (Take g = 10 m//s^(2) )

A block of mass m is placed on another block of mass M lying on a smooth horizontal surface as shown in the figure. The co-efficient of friction between the blocks is mu . Find the maximum horizontal force F (in Newton) that can be applied to the block M so that the blocks together with same acceleration? (M=3kg, m=2kg, mu=0.1, g=10m//s^(2))

A block with mass m_(1) is placed on an inclined plane with slope angle alpha and is connected to a second hunging block with mass m_(2) by a cord passing over a small . Friction less pulley as shown in fig 7.247 . The coefficient of static friction is mu_(2) and the coefficient of kinetic friction is mu_(s) a. Find the mass m_(2) for which block m_(1) moves up plane at constant speed once it is set in motion b. Find the mass m_(2) for which block m_(1) moves down the plane at constant speed once it is set in motion c.For what range of m_(2) will the blocks remain at rest if they are released from rest?