The coefficient of kinetic friction is equal to the force of kinetic friction divided by   a. the normal force b. the weight of the object c. the mass of the object d. the acceleration of the object     Why is static friction more complex in analysis than kinetic friction? a .Because its magnitude and direction can vary b. Because it is invisible c. Because it does not depend on the normal force d. Because it depends on the kinetic friction

Q: 1. Two boxes A and B are connected by a cord running over a pulley as shown in figure. The…

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Q: 3. A chain consists of identical links, each with a mass of 2.5 kg. You grab the top link and pull…

A: Given data Mass of the link is, m=2.5 kg Acceleration of the system, a=2.5 m/s2

Q: 2. You want to move a 500-N crate across a level floor. To start the crate moving, you have to pull…

A: weight = 500 N Thus , normal force = 500 N Using formula for frictional force : Static friction =…

Q: 2 (a) Three separate but equal masses are connected with ideal strings and move along a…

A: a)Force applied = F   Let mass of each block = m

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A: Given: m=1.50 kga = 3.75 m/s2

Q: 1. A 35-kg crate rests on a horizontal floor, and a 65-kg person is standing on the crate. Determine…

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Q: A 20.0-g ball hangs from the roof of a freight car by a string. When the freight car begins to move,…

A: Givenmass of ball m=20.0g                   m= 20.0x10-3kg                   θ=35.0°

Q: 1.A dockworker loading crates on a ship finds that a 250 kg crate, initially at rest on a horizontal…

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Q: Belle loves to travel local and abroad. She is already at the airport with her 20.0-kg suitcase at…

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Q: 6) A box of 4Kg sits on a table. The box is not moving. a) What is the net acceleration on the box?…

A: Given data: Mass of the box m =4 kg

Q: 1. A block of mass m is accelerated across a rough surface by an applied force F, directed at an…

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Q: A box full of books rests on a wooden floor. The normal force the floor exerts on the box is 317 N.…

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Q: 1. A ball with a mass of 10 kg is hanging from a long string that is tied to the ceiling of a train…

A: Given that: Mass of the ball, m= 10 kg The ball is hanging form ceiling of a train We need to draw…

Q: 1. You and some friends are trying to help another friend pull his car out some mud by attaching…

A: Given-Car mass =1500kgRope at three different angels31° ,32°, 53°Force applied at different rope985…

Q: 2. A bobsledder pushes her sled across horizontal snow to get it going, then jumps in. After she…

A: Explanation: After the bobsledder hops into the sled and pushes it across horizontal snow to get it…

Q: 2. A 25 kg chair initially at rest on a horizontal floor requires a 165 N hori- zontal force to set…

A: Note: In part (1) missing data of part (D). Part (2): Given: The mass of the object is 2 kg. The…

Q: The coefficient of sliding friction between rubber tires and the wet pavement is 0.50. The brakes…

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Q: 1. A box is pushed a desk with a force of 4.8N. The box accelerates at 1.9m/s squared a. Draw the…

A: Force, F = 4.8 N acceleration, a = 1.9 m/s2

Q: I need some help with the problem in the photo

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Q: 3. A father pulls his child on a sled by pulling on a rope over his shoulder with a force as much as…

A: Given : Fext=75N              θ=30°              f=15N              W=180N   Refer to the free body…

Q: travel local and abroad. She is already at the airport with her 20.0-kg suitcase at constant speed…

A: GivenMass od suitcase, m=20 kgAngle, =θSutcase pull with force, F=35 NFriction force on the…

Q: 1. A child pulls a wagon of mass 12 kg at a constant velocity along a level sidewalk. The child does…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: A copper 55 kg crate is on a steel floor.. a. What is the weight of the crate? b. What is the normal…

A: Dear student The minimum force required to move the block from rest is equal to maximum static…

Q: 1. Two objects connected by a light string that passes over a frictionless pulley as shown in the…

A: Newton's second law of motion states that the acceleration of an object is directly proportional to…

Q: A crate with mass m= 12 kg is submerging with constant acceleration aT= 1.8 m/s^2 into the level…

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Q: . A 1200 kg elevator is carrying an 80-kg passenger. Calculate the acceleration of the elevator, and…

A: GivenMass of elevator, m1=1200 kgMass of Passenger, m2=80 kg

Q: A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on a horizontal…

A: From Newton's law Ff=μsmgRearrangeμs=Ffmg=75 N20 kg9.81 ms2=0.382 Coefficient of static friction is…

Q: 3. A 2-kg box is pushed against a wall with a force of 24 N, directed as shown. The coefficient of…

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Q: 2) The ground reaction force acting on Carter during his long jump is 4,500N acting forward and…

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Q: 5. A 1200 kg elevator is carrying an 80-kg passenger. Calculate the acceleration of the elevator,…

A: Given that,mass of elevator, M=1200 kgmass of passenger, m=80 kgtotal mass=1280 kg

Q: Matthew wants to push a 12.0 kg chair to his desk. The coefficient of kinetic friction is 0.45. a.…

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Q: 8. In order to drag a 100 kg log along the ground at uniform velocity you have to pull on it with a…

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Q: You use a string to suspend a cork ball with a mass of 22 g from the ceiling of a moving speedboat.…

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Q: A boy throws a steel ball straight up. Consider the motion of the ball only after it has left the…

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Q: 4) A force of 60.0 newtons is applied to a rope to pull a sled across a horizontal surface at a…

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Q: 5. Which of these statements is NOT true about the friction force? A. Friction force depends on the…

A: Frictional force is a resistant force when a body slides on the other surface.

Q: A crate with mass m = 4 kg is submerging with constant acceleration aT = 0.65 m/s2 into the level…

A: Write the expression for total force of the system in the y direction .

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A: Given values:F = 200 Nm = 30.0 kgthe coefficient of kinetic friction between the crate and the…

Q: 1. Steve pushes a box across a level floor with a constant horizontal force. This causes the box to…

A: Problem 1 As it is mentioned that the box is moving with a constant velocity so the acceleration of…

Q: 1) A 75-kg crane is suspended through a frictionless pulley to a massless pole at two points, each…

A: The free body diagram of the system is as follows:

Q: 1.A dockworker loading crates on a ship finds that a 180 kg crate, initially at rest on a horizontal…

A: (a) The coefficient of static friction is given by: fs =μsN = μsmggiven:m = 180 kgg = 9.8 m/s2fs =…

Q: 3.  A chain consists of identical links, each with a mass of 2.5 kg. You grab the top link and pull…

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Q: Can air resistance affect the frictional force of an object and/or a surface? Why or why not?

A: The friction force is the force which opposes the relative motion between the two surfaces or the…

Q: A 2000 kg car in an action movie is skidding sideways and slowing down at a rate of -2.5 m/s2. What…

A: Let μ be coefficient of kinetic friction.Recall Fk=μNSo a=decceleration=Fk/M   a=μN/M…

Q: (1) An object with a mass of 10 kg is initially moving at an initial velocity Vj =10 m/s. It is…

A: The three equations of motion in 1-dimension are- 1) v=u+at2) s=ut+12at23) v2=u2+2as where, u is…

Q: What does "the acceleration is the manifestation of the force" means?   a. We know that the…

A: Option (a) is correct choice. We know that the existence of an influence, a force, will make an…

Q: 1. A wooden block rests on a wooden table. You push the block to the right; while you are pushing…

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