A smooth block loosely fits in a circular tube placed on a horizontal surface. The block moves in as uniform circular motion along the tube figure. Which wall (inner or outer) will exert a nonzero normal contact force on the block?
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A smooth block loosely fits in a circular tube placed on a horizontal surface . The block moves along the tube (fig ) Which wall (inner or outer) will exert a non zero normal contact force on the block?

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 trolley moving on a smooth horizontal surface in straight line uniformly [see figure (a)], with constant acceleration [see figure (b)] Constant retardation [see figure (c)]. The total contact force on the block is

Figure shows four blocks that are being pulled along a smooth horizontal surface.The masses of the blocks and tension in one cord are given.The pulling force F is

A block of mass m is placed on a rough horizontal surface. The coefficent of friction between them is mu . An external horizontal force is applied to the block and its magnitude is gradually increased. The force exerted by the block on the surface is R.

Consider a block moving in a horizontal circular path on the inner surface of a cone. The normal force on the block is :

A block of mass m is placed on a smooth wedge of inclination. The whole system is accelerated horizontally so that block does not slip on the wedge Find the i) Acceleration of the wedge Force to be applied on the wedge Force exerted by the wedge on the block .

Two blocks A and B are placed in contace on a horizontal surface. Faces of block A and B , which are in contact , are inclined at 30^(@) with the horizontal, as shown. There is no friction between block A and any surface which is in contact with this whereas friction coefficient between block B and the surface is (1)/(sqrt(3)) . A force F is applied in horizontal direction on block A . What is the minimum value of F at which the block B just start moving rightwards ?

Two blocks of mass 2 kg and 4 kg are kept in contact with each other on a smooth horizontal surface. A horizontal force of 12 N is applied on the first block due to which they move with certain constant acceleration. Calculate the force between the blocks.