Consider the following diagram. In which...

Consider the following diagram. In which direction, the motion of the spool of thread (acted upon by three forces shown) kept over a perfectly rough horizontal surface will take place ?

Right side

Left side

The spool of thread remains in the state of rest

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Inner and outer radii of a spool are r and R respectively. A thread is wound over its inner surface and placed over a rough horizontal surface. Then: .

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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?

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In the following problems, indicate the correct direction of friction force acting on the cylinder, which is pulled on a rough surface by a constant force F . A cylinder is pulled horizontally by a force F acting at a point below the centre of mass of the cylinder, as shown in figure. The friction force can be given by which of the following diagrams. .

In the following problems, indicate the correct direction of friction force acting on the cylinder, which is pulled on a rough surface by a constant force F . A cylinder is pulled horizontal by a force F acting at a point the centre of mass of the cylinder, as shown in figure. The friction force can be given by which of the following diagrams. .

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