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Laws of Motion ...

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  • Question 1
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    A ball of mass 0.6 kg attached to a light inextensible string rotates in a vertical circle of radius 0.75 m. It has a speed of 5 ms-1 when the string is horizontal. Tension in string when it is horizontal on the other side is (Take g = 10 ms-2)

  • Question 2
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    A block is placed on an inclined plane. The angle of inclination (θ) of the plane is such that the block slides down the plane at a constant speed. The coefficient of kinetic friction between the block and the inclined plane is equal to

  • Question 3
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    A block of mass 2 kg is placed on the surface of a trolley of mass 20 kg, which is on a smooth surface. The coefficient of friction between the block and the surface of the trolley is 0.25. If a horizontal force of 2 N acts on the block, then the acceleration of the system (in ms-2) (g = 10 ms-2) is

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