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 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 m is moving on a rough horizontal surface. mu is the coefficient of kinetic friction between the block and the surface. What is the net force exerted by the surface on the block?

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 :

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 weighing 20 N rests on a horizontal surface. The: coefficient of static friction between block and surface is 0.40 and the coefficient of kinetic friction is 0.20. ( a) How large is the friction force exerted on the block? (b) How great will the friction force be if a horizontal force of 5 N is exerted on the block? (c) What is the minimum force that will start the block in motion? (d) What is the minimum force that will keep the block in motion once it has been started? (e) If the horizontal force is 10 N, what is the friction force?

A block of mass sqrt(3)//10kg is placed on a rough horizontal surface as shown in the figure. A force of 1N is applied at one end of the block and the block remains stationary. The normal force exerted by the sruface on the block acts(g=10 m//s^(2) )