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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The ball of mas m moves with speed v againest a smooth , fixed vertical circular groove of radius R kept on smooth horizontal surface find the a. normal reaction of the floor or the ball. b. normal reaction of the vertical wall on the ball.

A 100g block is connected to a horizontal massless spring of force constant 25.6 N//m . The block is free to oscillate on a horizontal fricationless surface. The block is displced by 3 cm from the equilibrium position, and at t = 0 , it si released from rest at x = 0 , The position-time graph of motion of the block is shown in figure. When the block is at position A on the graph, its

A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m . Force P is applied at one end of rope. The force which the rope exerts on the block is:

A block is placed on the horizontal surface. There are two forces acting on the block. One, the downward pull of gravity and other a normal force acting on it. Are these forces equal and opposite? Do they form action - reaction pair? Discuss with your friends.

A 100g block is connected to a horizontal massless spring of force constant 25.6 N//m . The block is free to oscillate on a horizontal fricationless surface. The block is displced by 3 cm from the equilibrium position, and at t = 0 , it si released from rest at x = 0 , The position-time graph of motion of the block is shown in figure. Let us now make a slight change to the initial conditions. At t = 0 , let the block be released from the same position with an initial velocity v_(1) = 64 cm//s . Position of the block as a function of time can be expressed as

A block is dragged on a smooth plane with the help of a rope which moves with a velocity v as shown in figure. The horizontal velocity of the block is :

Two blocks of m asses 6 kg and 2 kg are placed in contact on a horizontal frictionless surface. If a horizontal force of 2N is applied to m ass 6 kg to move them together, what will be the acceleration of 2 kg block ? What will be the force on this block ?

A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m as shown in A horizontal force F is applied to one end of the rope. Find (a) the acceleration of the rope and block (b) the force that the rope exerts on the block (c) the tension in the rope at its mid point

A block of mass'm' it kept over the smooth surface of the plank of mass M. the plank of length l is kept over the smooth horizontal surface. A constant horizontal force F is applied onto the plank as shown in figure. Calculate the time after which the block falls off the plank?

A force of 50N acts in the direction as shown in figure. The block of mass 5kg, resting on a smooth horizontal surface. Find out the acceleration of the block.