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Cause of Friction

A body of mas...

Question

A body of mass 5 kg is placed on a rough horizontal surface. If the coefficient of friction is 1/√3,find what pulling should act on the body at an angle 30(degree) to the horizontal so that the body just begins to move.

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Q. A pulling force of

100 N

is acting at an angle of

30^{0}

with the horizontal on a body of mass

50 kg

placed on a rough horizontal surface. Will the same force cause the body to move if it is a pushing force for the body? If not, what should be the value of the force (acting at the same angle) to cause the body to just move? Take

g = 10 {m/s}^{2}

.

Q. A pulling force of

100 N

is acting at an angle of

30^{0}

with the horizontal on a body of mass

50 kg

placed on a rough horizontal surface. Will the same force cause the body to move if it is a pushing force for the body? If not, what should be the value of the force (acting at the same angle) to cause the body to just move? Take

g = 10 {m/s}^{2}

.

Q. Find the least pulling force acting at an angle of

30^{\circ}

with the horizontal, which can just slide a body of mass

10 kg

along a rough horizontal surface

[μ_{s} = μ_{k} = \frac{1}{\sqrt{3}}, g = 10 m / s^{2}]

Q. A body of mass M is kept on a rough horizontal surface (friction coefficient

μ

). A person is trying to pull the body by applying a horizontal force but the body is not moving. The force by the horizontal surface on the surface of the body is F, where

Q. A body of mass M is kept on a rough horizontal surface ( friction coefficient ). A person is trying to pull the body by applying a horizontal force but the body is not moving. The force by the surface on A is F where

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