Two crates of fruit  are released from the top of a ramp inclined at 30 degrees from the horizontal and 4.5 meter long. The two crates consist of  an apple crate of mass 20 kg that is placed in front of a watermelon crate of mass 80 kg.  The apple crate has a coefficient of friction of 0.20 while the watermelon crate has a coefficient of friction of 0.15. How long does it take the apple crate to reach the bottom of the incline if it needs to travel a distance of 4.5 meters?

Q: A 7kg block is placed on an inclined that is 24 degrees to the horizontal. It has a coefficient of…

A: Given:- The mass of the block m = 7 kg  The inclined plane at an angle of 24 degrees to the…

Q: Block A with a mass of 2.8 kg is at rest on a table 1 m from the edge. The table is inclined to an…

A: Given, mass of block m1 = 2.8 Kg mass of block m2 = 2 Kg Distance of table from edge d = 1 m angle…

Q: A mover has to move a heavy sofa of mass 100 kg to the second floor of the house. He uses a rope to…

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Q: You are working for a shipping company. Your job is to stand at the bottom of an 8.0-m-long ramp…

A: Given data: The coefficient of kinetic friction is μk=0..30 The length is l = 8.0 m long

Q: You go to the playground and slide down the slide, a 3.0-m-long ramp at an angle of 40° with respect…

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Q: n object with a weight of 100 N is at rest on a horizontal surface. The static coefficient of…

A: Given:   The weight of the object is 100 N. The applied force is 65 N. The coefficient of static…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 46 kg. You were pulling…

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Q: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

A: girl has a 14 kg wagon. If she pushes from behind at an angle of the 30 degrees with a force of 60…

Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 50 kg. You were pulling…

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Q: Two boxes (m = 0.500 kg and M = 1.00 kg) are sliding down a rough incline. The coefficient of…

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Q: A large crate has a mass of 120 kg and sits on a horizontal floor. You push on the crate with a…

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Q: F

A: Given: Mass m1 = 4.7 kg. Mass m2 = 2.4 kg. Upward force F = 6.4 N. Downward acceleration (a) = 4.7…

Q: A rope exerts a constant horizontal force of 280 N to pull a 50kg crate across the floor. the…

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Q: A box started at rest but was moved at a speed of 5 m/s. It was pushed 3 meters up a 60° ramp. The…

A: The mass of the box is m = 5.6 kg. The inclination of the plane with the horizontal is θ = 60…

Q: A 976-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the…

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Q: A block with a mass of 3.61 kg is at rest on an inclined surface. The surface makes an angle of…

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Q: A sled and rider have a total mass of 50.5 kg. They are on a snowy hill. The coefficient of kinetic…

A: Given: Total mass of sled and rider is 50.5kg. The coefficient of kinetic friction is 0.170. The…

Q: he top of a ramp, which is inclined at an angle of 20 degrees with respect to the horizontal.…

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Q: A mover has to move a heavy sofa of mass 101 kg to the second floor of the house. He uses a rope to…

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Q: A mover has to move a heavy sofa of mass 158 kg to the second floor of the house. He uses a rope to…

A:

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 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: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 50 kg. You were pulling…

A: Force applied (F)= 480 N Coefficient of kinetic friction (µk)= 0.49 Mass of crate(m)= 50 kg Angle of…

Q: A mover has to move a heavy sofa of mass 166 kg to the second floor of the house. He uses a rope to…

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Q: You are at the grocery store pushing on a shopping cart. The mass of the cart including all the…

A: Given Data : The mass of the cart is given as mc = 26 Kg. The coefficient of friction between the…

Q: A penguin slides at a constant velocity of 2.54 m/s down an icy incline. The incline slopes above…

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Q: A person pushes a block of mass M = 6.0 kg with a constant speed of 5.0 m/s straight up a flat…

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Q: You managed to pull a heavy crate up a ramp on a truck. The crate has mass 47 kg. You were pulling…

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Q: horses pull a cart with a total applied force of 1000N. The kinetic friction from the gravel road…

A: Given  Mass of cart, M = 200 kg  Force applied, F = 1000 N  Frictional force, f = 375 N

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 vertebra is subjected to a shearing force of 540 N. Find the shear deformation, taking the…

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Q: Somone is standing on a piece of cardboard holding a wire that is attached to a vehicle.  The…

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Q: Three blocks (as shown in the figure) are released from rest and they start to accelerate with a…

A: Step 1: here we have derived the equation of motion of the masses Step 2: here we have calculated…

Q: An object is given an initial speed of 5 m/s on a horizontal surface.It slides 10 m on the…

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Q: 2 crates are connected to each other by a rope. One crate(m=17kg) is sitting by the ledge of a…

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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: You are driving a car at a constant speed of 14.0 m/s along a straight level road. As you approach…

A: The initial velocity of the car is u = 14 m/s. The final velocity of the car is v = 0 m/s. The…

Q: The strings and frictionless pulleys have negligible masses.  The coefficients of kinetic friction…

A: Given that, the mass of block A is mA=3kg the mass of block B is mB=4kg coefficient of kinetic…

Q: If the coefficient of kinetic friction between the 50-kg crate and the ground is mk = 0.3, determine…

A: Given data: Mass of the crate, m=50 kg Coefficient of kinetics friction, μk=0.3 Time, t=3 s Force,…

Q: A person whose weight is  516 N is being pulled up vertically by a rope from the bottom of a cave…

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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.