A crate is sitting on a horizontal surface where the coefficient of static friction is 0.60. A worker pushes horizontally on the crate, which has a mass of 45 kg. The crate does not move, and there are no other forces acting on it. Which of the following statements is true? (a) The force of friction on the crate is mgμs. (b) The force of friction on the crate is mgμk. (c) The force of friction on the crate is greater than the force that the worker exerts on the crate. (d) The force exerted on the worker by the crate is equal in magnitude to the force of friction exerted by the surface on the crate.

Options which are true - (A) As the crate is not moving so only static friction of coefficient will…

A crate is sitting on a horizontal surface where the coefficient of static friction is 0.60. A worker pushes horizontally on the crate, which has a mass of 45 kg. The crate does not move, and there are no other forces acting on it. Which of the following statements is true?

A crate is sitting on a horizontal surface where the coefficient of static friction is 0.60. A worker pushes horizontally on the crate, which has a mass of 45 kg. The crate does not move, and there are no other forces acting on it. Which of the following statements is true?

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Question

		(a) The force of friction on the crate is mgμ_s.
		(b) The force of friction on the crate is mgμ_k.
		(c) The force of friction on the crate is greater than the force that the worker exerts on the crate.
		(d) The force exerted on the worker by the crate is equal in magnitude to the force of friction exerted by the surface on the crate.

Definition Definition Force that opposes motion when the surface of one item rubs against the surface of another. The unit of force of friction is same as the unit of force.

Expert Solution