A conveyor is dumping sand onto a cone shaped pile. Given that the coefficient of static friction between the sand grains is μs, what is the maximum angle θ?

Q: 20 kg box sits on a level floor. The box does not move until you push on it with a horizontal force…

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Q: A 10 kg of box was put in a horizontal table. The static coefficient of friction is 0.15. What could…

A: Given(s): It is a horizontal table. Mass of the box, m=10 kg The static coefficient of friction is…

Q: If the coefficient of static friction between a 35 kg table and the floor is 0.25, how much…

A: The horizontal force exerted on the table to start move on the floor is, Fh=fs=μsN=μsmg

Q: A rug (mass of 20.0 kg) is sitting on a slope with an angle of 20 degrees. A person (mass of 40.0…

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Q: Problem#2: On an unbanked road, a vehicle travels at 42 mi/h constantly on a circular motion of…

A: The net force acting on an object is the product of the mass and the acceleration of the object. The…

Q: A 90.0-kg crate is being lowered off the roof of a building. Its rate of descent is slowed by a…

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Q: A body of mass 400 g slides on a rough horizontal surface. If the frictional force is 3.0 N, find…

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Q: You are trying to push a box with a fragile vase sitting on top of it across the room. Starting the…

A: Given: The box starts from rest. Distance moved (s) by the vase and the box is 5 meters. Time (t)…

Q: Two blocks are connected over a massless, frictionless pulley by a massless string, as shown in the…

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Q: crate is at rest on a level surface. If the coefficient of static friction between the crate and the…

A: Given:- The mass of the object m = 40 kg  the coefficient of static friction between the crate and…

Q: A 3.47 kg block is placed at one end of a wooden plank that is 9.05 m long. The plank is slowly…

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Q: Skid marks left by the driver are 56.0 m long and the roadway is level. Tires matching those on the…

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Q: A crate of mass 61 kg lies on a flat floor.  A person exerts a horizontal force of 141 N on it. If…

A: Given applied force on the mass = 141 N The crate does not move.

Q: Someone is dancing on a revolving dance floor. The floor completes 3 revolutions every 5 minutes and…

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Q: A block with a mass of 6.47 kg is on a horizontal surface that has friction. A string is pulling…

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Q: A car is traveling at 46.0 mi/h on a horizontal highway. (a) If the coefficient of static friction…

A: Given Data: Initial speed of the car (u) = 47 mi/h = 21.0 m/s. Final speed of the car (v) = 0 m/s.…

Q: A man is pulling two boxes, one on top of the other, up the ramp shown by pulling on a rope parallel…

A: We need to find out the magnitude of the maximum acceleration the man can pull the boxes up the ramp…

Q: A race car rounds one end of a speedway. This end of the track is a turn with a radius r of…

A: Speed = v = 62mi/h v = 90.93 ft/s. [1mi/hr = 1.467 ft/s] Radius of track = r = 187 ft. ac =…

Q: 45kg gymnast wedges himself between two closely spaced vertical walls by pressing his hands and feet…

A: Given,  Mass = 45 kg   We need to calculate,  Friction force with given condition =?

Q: A flatbed truck is carrying a 20-kg crate up a sloping road. The coefficient of static friction…

A: Mass of crate =20 kgcoefficient of static friction between the crate and the bed is 0.40,coefficient…

Q: A 2 kg box is against a vertical wall by a small force (f1=10n) perpendicular to the surface of the…

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Q: A 10kg monkey is hanging from branches. The angles that the monkeys arms make with the horizontal…

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Q: A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box the…

A: The mass of the box=55kg.The coefficient of static friction =0.30.The coefficient of kinetic…

Q: A heavy box of mass M is found at rest on an inclined loading ramp as indicated in the figure. The…

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Q: A box of mass 33 kg sits at rest on a ramp that makes an angle of 11 degreeswith the horizontal. The…

A: Draw the free-body diagram of the box.

Q: A 50 kg wooden crate rests on a horizontal concrete floor. The coefficient of friction is Ms= 0.7.…

A: Frictional force can be expressed as fs=μsN

Q: A box is placed at one end of a 2.00-m plank. That end of the plank is slowly raised until the box…

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Q: A pickup truck carries cans of paint in the back bed. The coefficient of static friction between the…

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Q: A 7.3 kg crate is moved rightward across a horizontal surface by a horizontal force such that it has…

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Q: 270 N 50°7 B 400 N 30 D 30

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Q: You are trying to walk up a steep hill. The coefficient of static friction is 0.62. What is the…

A: Given data: -  The coefficient of static friction is μ = 0.62.

Q: car (m = 1980 kg) is parked on a road that rises 13° above the horizontal. What are the magnitudes…

A: Mass of car (m) = 1980 kg Angle of road with the horizontal (θ) = 13o above horizontal

Q: here is an object with mass of 70 kg, you are pulling it with a rope angled at 28 degrees up with…

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Q: You are out on a hike and come across an unfortunate scene: a fellow hiker has fallen off a ledge.…

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Q: The 137-lb force P is applied to the 240-lb crate, which is stationary before the force is applied.…

A: Given, 137-lb force P is applied to the 240-lb crate. μs = 0.51 and μk = 0.39 Static friction = μsN…

Q: A 397 N crate rests on a ramp; the maximum angle just before it slips is 33° with the horizontal.…

A: Given Data : Weight of the crate is W=397 N. Angle of inclination of the ramp θ=33°.   Let the…

Q: A 30 kg object sits on a table. The coefficient of static friction between the object and the table…

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Q: A block with a mass of 7.15 kg is on a horizontal surface that has friction. A string is pulling…

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Q: A car (m = 1790 kg) is parked on a road that rises 17° above the horizontal. What are the magnitudes…

A: Given that,  Mass of the car, m=1790 kg Incline angle, θ=17o Normal force, FN=? Static frictional…

Q: A 51.9 kg crate is hung from the ceiling by two wires. Each wire makes an angle of 41 degrees with…

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Q: ou are pushing a wooden crate against a rubber floor. The two surfaces have a static coefficient of…

A: Given: The mass of the crate is 25 kg. The coefficient of the static friction is 0.45. The…

Q: A box of mass mb is being blown by a strong steady wind across the level surface of a picnic table.…

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Q: Based on this value, what is the minimum coefficient of static friction μs between the race track…

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: