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A heavy uniform chain lies on a horizontal tabletop. If the coefficient of friction between the chain and the table surface is 0.25, then the maximum fraction of the length of the chain that can hang over one edge of the table is

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Important Questions on Laws of Motion

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Physics Crash Course NEET>Chapter 3 - Laws of Motion>Level 3>Q 41
The force required just to move a body up an inclined plane is double the force required just to prevent the body sliding down. If the coefficient of friction is 0.25, then the angle of inclination of the plane is:
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Physics Crash Course NEET>Chapter 3 - Laws of Motion>Level 3>Q 42
A box is lying on an inclined plane. If the box starts sliding when the angle of inclination is 60°, then the coefficient of static friction of the box and the plane is