A box of holiday decorations has a mass of 38 kg and is being pushed across the floor. The frictional force along the surface is 56 N and it is being moved at a constant velocity. If the box is in equilibrium because all forces acting on it are equal, what must be the applied force in order for this to happen?

Q: One block rests upon a horizontal surface. A second identical block rests upon the first one. The…

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Q: A 336-kg crate rests on a surface that is inclined above the horizontal at an angle of 22.8°. A…

A: Concept: The Free Body diagram of the system is given below Given: The Mass of the crate = 336 kg…

Q: A student uses a force P of magnitude 55 N and angle 0 = 75° to push a 4.0 kg block across the…

A: Given: The mass of the block is m=4 kg. The magnitude of the force is P= 55 N. The angle with the…

Q: An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total mass…

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Q: A person pushes horizontally with a force of 160 N on a 55.0 kg crate to move it across a level…

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Q: A block with a mass of 5.84 kg is at rest on an inclined surface. The surface makes an angle of…

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Q: A 19 kg box is being pushed uniformly across a horizontal surface with which the coefficient of…

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

Q: Mary applies a force of 78 N to push a box with an acceleration of 0.54 m/s2. When she increases the…

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Q: A 2.03 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book…

A: mass of book (m) = 2.03Kg Coefficient of static friction (μs) = 0.482 Coefficient of Kinetic…

Q: A sled and rider have a total mass of 52.5 kg. They are on a snowy hill. The coefficient of kinetic…

A: Kinetic Friction: Kinetic Friction is the Frictional force experienced by two objects having…

Q: A circus gymnast hangs from two ropes attached to the ceiling while lowering himself to the floor at…

A: Given: The angle of the first rope with vertical is 28.3°. The tension in the first rope is 352 N.…

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: A toy chest and its contents have a combined weight of W= 220 N. The coefficient of static friction…

A: Given:- The toy chest and its contents have a combined weight W= 220 N  The coefficient of the…

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 girl is sledding down a slope that is inclined at 30° with respect to the horizontal. The wind is…

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Q: small block with mass 0.327 kg is sliding down a frictionless ramp that is inclined at an angle of…

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Q: Bob and Jane are trying to pull a heavy box (m=500 kg) to the top of a ramp which is inclined at 15…

A: How hard to Bob and Jane have to pull the box in Newtons to get it to start moving up the ramp.…

Q: A box of mass 37 kilograms is being pushed as constant speed in a straight line across the floor by…

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Q: A constant applied force F, of 15.0 N pushes a box with a mass m = 7.00 kg a distance x = 15.0 m…

A: Given: Applied force Fp=15.0 N. Mass of the block m=7.0 kg. Distance traveled by block x=15.0 m. The…

Q: A 1.00 × 103-N crate is being pushed across a level floor at a constant speed by a force → F of…

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Q: Mary applies a force of 78 N to push a box with an acceleration of 0.49 m/s2. When she increases the…

A: The applied force in first case is 78 N and acceleration is 0.49 m/s2. The applied force in second…

Q: A 2.53 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: Your friend asks for help moving a box across the apartment floor and tells you that the box weighs…

A: The static frictional force on the box Fs=μsW=0.42·422=177.24 N The kinetic frictional force on the…

Q: A stubborn 146 kg mule sits down and refuses to move. To drag the mule to the barn, the exasperated…

A: Given: The mass of the mule is m = 146 kg The farmer pulls the mule with a maximum force is F = 604…

Q: A crate filled with oranges is being pushed across a floor at constant velocity. The mass of the…

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Q: You are lowering two boxes, one on top of the other, down the ramp shown in the figure by pulling on…

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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 horizontal force of 800 N is needed to overcome the force of static friction between a level floor…

A: The magnitude of horizontal force F=800 N The mass of the crate m=200 kg The acceleration due to…

Q: Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P is…

A: F (P ) = - 6.1 NF (Q) =x Nmass = 3.8 kg solution for part bacceleration = 7.5 m/s^2Net force = mass…

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: 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: Mary applies a force of 78 N to push a box with an acceleration of 0.49 m/s2. When she increases the…

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

Q: A block with mass m1 = 8.7 kg is on an incline with an angle θ = 37° with respect to the horizontal.…

A: Given Data:Mass of block 1 Angle of block 1 Coefficient of kinetic friction Coefficient of static…

Q: Mary applies a force of 71 N to push a box with an acceleration of 0.45 m/s2. When she increases the…

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Q: A car (m = 1600 kg) is parked on a road that rises 12° above the horizontal. What are the magnitudes…

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Q: A worker pulls a 15-kg crate in a straight line on a level surface by imparting a horizontal tension…

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Q: Mary applies a force of 73 N to push a box with an acceleration of 0.42 m/s2. When she increases the…

A: Using Force balance on box in horizontal direction Fx_net = F_app-Ff Fx_net =m*a(From newton's 2nd…

Q: You must push a crate across a floor to a docking bay. The crate weighs 183 N. The coefficient of…

A: The weight of the crate is The coefficient of static friction, The coefficient of kinetic friction,

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.