mass
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Q: A woman exerts a horizontal force of 109 N on a crate with a mass of 38.7 kg. (a) If the crate…
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Q: Two boxes are placed on an inclined plane at angle a to the horizontal. The masses of the two boxes…
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Q: The coefficient of friction between a 33kg exercise mat and the gym floor are us = 0.41 and uk =…
A: Givenμs =0.41μk =0.36m =33 kg
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Q: A 2.5 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 5.7 N…
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Q: You are pushing a 30 kg crate along a horizontal floor (the coefficients of static and kinetic…
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Q: A 2.5 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 6.2 N…
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Q: A block with mass m1 = 8.7 kg is on an incline with an angle θ = 37° with respect to the horizontal.…
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Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P =…
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Q: A 2.60 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 7.29…
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initially stationary block of mass m on a floor. A force of magnitude F = 0.450mg is then applied at upward angle ? = 22°.
m/s2
(b) What is the magnitude of the acceleration of the block across the floor if the friction coefficients are ?s = 0.395 and ?k = 0.295?
m/s2
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- A cable attached to a block of mass 13 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 5.1 N, what is the coefficient of kinetic friction between the block and the floor?A man wants to move a heavy wooden crate (82 kg) across a wooden floor. However, since he is taller than the crate, he must pull it using a rope that makes an angle of 42 degrees with the horizontal. He exerts a force of 312 N as he pulls. What is the Normal Force exerted by the floor on the crate? What is the size of the Friction Force felt by the crate, if the crate moves at a constant speed in a straight line? Imagine that instead the floor is more slick, so that the crate feels a friction force half of what you calculated above. What is the crate’s acceleration?A block is at rest on a horizontal floor. There is friction between the block and the floor. The block has a mass = 5.00 kg. A horizontal force of 13.0 Newtons is applied to the block and the block starts to move in the direction of the force. What is the coefficient of static friction?
- A block 5.0 kg is on an inclined plane. If the friction coefficient (static and kinetic) between the block and the plane is μ = 0.5, and the angle θ = 35°, determine the maximum friction force that the plane could exert on the block. The block is not necessarily at rest. Use g = 10 N/kg.A force F is applied to a block to move it up a θ = 27° inclined frictionless surface. If F = 72 Newton, and M =4.2 kg, what is the magnitude of the acceleration of the block?A 2.5 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 6.2 N and a vertical force P are then applied to the block. The coefficients of friction for the block and surface are us = 0.38 and uk = 0.22. (a) Determine the magnitude of the frictional force acting on the block if the magnitude of P is 8.0 N. (b) Determine the magnitude of the frictional force acting on the block if the magnitude of P is 10.0 N. (c) Determine the magnitude of the frictional force acting on the block if the magnitude of P is 12.0 N.
- A block is sliding down a ramp at an angle of 0 = 16° to the horizontal. Its initial speed is 2.8 m/s. After sliding 13.6 m along the ramp, it comes to a rest. What is the coefficient of kinetic friction, µ., between the block and the ramp? Ө5A block of mass m =1 kg, slides down a rough incline with constant velocity. The coefficient of kinetic friction between the block and the incline is µr, and the incline makes an angle 0 = 30° horizontal. Take g = 10 m/s2. The coefficient of kinetic friction µ is then equal to: v= constant with the O 0.577 O 0.466 O 0.422 O 0.364