Counterweight 200 m 200 30°

Q: This time the magnet has mass 6.08 kg and the force pulling it to the right is 110.3 N. When the…

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Q: A cheetah accelerates constantly from rest to catch a gazelle. The cheetah covers a distance of 40 m…

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Q: A person wants to move a 10kg box to a different location. He pushes the box at a steady 0.5 m/s…

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Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: Three forces act on a particle that moves with unchanging velocity (2.4 m/s )i + (-6.5 m/s )j. Two…

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Q: Same type of track as in the previous problem, this time with d = 2.73 m. The block starts at x = 0,…

A: Apply the energy conservation equation to determine the height up to which the block reaches. Since…

Q: What is the magnitude of the average drag force ?drag exerted on the car?

A: work done by non conservative forces = change in total energy work done by drag force = total final…

Q: slides? 1. 4.68 m/s^2 2 1.23 m/s^2 3 6.08 m/s^2 4 1.76 m/s^2

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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: The figure shows a 2000 kg cable car descending a high hill. A counterweight of mass 1800 kg on the…

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Q: A stone is thrown straight upward with a speed of 25 m/s. It is caught on its way down at a point 5…

A: The vertical displacement of stone is   y=y_0+v_0t-(1/2)gt^2  5=25t-(1/2)(9.80)t^2 5=25t-4.90t^2 On…

Q: The 29 kg crate is subjected to a force having a constant direction and a magnitude 150 N. When s…

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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 box is launched up a rough incline with an initial velocity, vo = 6.7 m/s, as in the figure below.…

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Q: A block with a mass of 0.276 kg slides across a table with an initial speed of 1.87 m/s. It has a…

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Q: A man pushes an object to the right and exerts a force which has a horizontal compotent of F = 33 N.…

A: External force on the body F = 33 NFrictional force fs = 15 NMass of the object m = 31 kg.Given time…

Q: You push a box (mass 3 kg) so that its initial speed is 2.2 m/s. It slides across a rough floor…

A: KE=Wfriction12mv2=μkmgdd=v22μkg

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 spider hangs from the junction formed by three strands of silk, as shown in the figure. The force…

A: According to Lami's theorem ,if three forces acting at a point are in equilibrium then each force is…

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: The Johnsons just received a heavy package (perhaps a treadmill) in the mail that they ordered from…

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Q: The Johnsons just received a heavy package (perhaps a treadmill) in the mail that they ordered from…

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Q: A person stands on the ball of one foot. The normal force due to the ground pushing up on the ball…

A: Given Data:-  The Normal force due to the ground pushing up on the ball of the foot N = 750 N  The…

Q: A Z-Drag is an arrangement of ropes in pulleys often used in rescue situations. Implemented…

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Q: 2000-kg car initially at rest is held by a friction force that can resist up to 1200 N. If the…

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Q: We start with some review problems A crate of mass 27.1 kg rests on a level surface, with a…

A: Given Data : The mass of the crate is given as m = 27.1 Kg. The force applied to the crate is given…

Q: A book slides across a level, carpeted floor with an initial speed of 3.85 m/s and comes to rest…

A: Initial velocity, v = 3.85 m/s Distance, d = 3.75 m Coefficient of kinetic friction, µ = ?

Q: A teacup fell was left on the wing of a fighter jet and did not fall until the jet was already very…

A: When object falls with a constant velocity the drag force on it is equal to the gravitational force…

Q: A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the…

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Q: A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: We have to find out how far does the block rise on left based on above information

Q: A car starts from rest and accelerates along a straight highway. The car’s engine produces a…

A: free body diagram    given

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

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Q: A steel beam is suspended from two ropes as it is lifted to the top of a building at a constant…

A: Given: θ1=27.1°θ2=25.7° T1=711 N Free Body Diagram:

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.