The coefficient of static friction for the knee cartilage is 0.003. What is the static friction in a knee of a healthy person of 72 kg standing on both feet? Assume that g = 10 m/s2. Select one: a. 1.1 N b. 2.4e4 N c. 2.4e5 N d. 0.11 N

Q: 1. A.Five forces pull on the 4.0kg box in the Figure below. Find the box's acceleration (a) in…

A: Given  Mass of block = M = 4.0 kg  Now there are different masses let  F1= 3.0N i^ F2= -11.0 N i^…

Q: 9. A 102 kg crate is being pushed across a level floor at a constant speed by a force of 300N…

A: Given: The mass of the crate is 102 kg. The force applied is 300 N. The angle is 20 degrees.

Q: A car of mass 1600 kg begins to roll down a hill which is inclined at 15 degrees from the ground.…

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Q: You need to drag a very heavy table (m = 57kg) across the kitchen floor, so you apply a force of…

A: Since you have asked multiple subparts, we will solve the first three for you. If you want a…

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: 2. A 100- kg crate rests on a rough horizontal surface. The coefficient of static friction and…

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Q: Christmas light hangs on a series of strings as shown in the figure below. The tension on string ?,…

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Q: A 44-kg box rests on the floor. The coefficients of static and kinetic friction between the bottom…

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Q: 3. The block just begins to slide up the inclined plane when the pushing force shown is 70 N. a.…

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Q: 1. a) A boat moves through the water with two forces acting on it. One is a 2000N forward push by…

A: a) Given quantities: mass of the boat (m) = 1000 kg  Forward force on the boat (F) = 2000 N…

Q: Suppose you have a 126-kg wooden crate resting on a wood floor. , = 0.3 and u = 0.5) (a) What…

A: Frictional force is always there  to oppose the motion. When the body is at rest then frictional…

Q: Christmas light hangs on a series of strings as shown in the figure below. The tension on string ?,…

A: A Christmas light hangs on a series of strings as shown in the figure below. The tension on string

Q: A 10-kg wooden box rests on a ramp that is lying flat. The coefficient of static friction is 0.50,…

A: Given, m=10 kgμs=0.50μk=0.30

Q: A 3.0 kg block of wood sits on a horizontal wooden floor. The larges force that can be applied…

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Q: A 173 N sled is pulled up a 26 degree slope at a constant speed by a force of 168 N.  What is the…

A:

Q: 1. During the last step of a high jump, a woman experiences a 2,500 N ground reaction force under…

A: Given data: The ground force reaction at α=45° is F1=2500 N. The force at β=70° is F2=4500 N.

Q: The distance between two telephone poles is 50.0 m. When a 1.00-kg bird lands on the telephone wire…

A: SOlution: Given that L = 50m m = 1 kg x = 0.2 m

Q: The coefficient of static friction for the knee cartilage is 0.003. What is the static friction in a…

A: Calculate the force on each leg of the person. Force on each leg F=Massm×g2…

Q: A 7.5 kg crate is placed on a ramp that is at an angle of 30.0 ̊ relative to the horizontal. a) What…

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Q: A 70.0 kg box is pulled by a 300. N force at an angle of 30.0 to the horizontal. The static and…

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Q: A force of 34.0 N is required to start a 6.5 kg box moving across a horizontal concrete floor. Part…

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Q: A woman at an airport is towing her 23.0-kg suitcase at constant speed by pulling on a strap at an…

A:

Q: 3. A 10-lb block of steel is at rest on a horizontal table. The coefficient of static friction…

A: a) The static frictional force will make the block start moving horizontally. The static frictional…

Q: A 1000N cow is sitting in the grass. a. What is the cow’s mass? b. What is the cow’s weight? c. What…

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Q: A 75.0Kg person stands on a scale that reads 500 Newton's. The person is pulling on a rope that is…

A: Draw the free body diagram of the person.

Q: A 50.0-kg box rests on a horizontal surface. The coefficient of static friction between the box and…

A: Given data: Mass (m) = 50.0 kg Coefficient of static friction (μs) = 0.300 Coefficient of kinetic…

Q: what is the magnitude of the force of kinetic friction (in N) acting on the crate?

A: Note: Here we draw only the necessary forces which use to solve the question. Here, F is a…

Q: a 49 kg rock climber is climbing a “chimney.” The coefficient of static friction between her shoes…

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

A: As,  Due to statistic force when the man pushes the box it doesn't move. To overcome that statistic…

Q: 3. A 500-kg block with an initial speed of 90 cm/sec slide along a horizontal table top against a…

A: Mass of the block m=500 kg, initial speed of block u=90 cm/s=0.9 m/s and frictional force applied in…

Q: A 50 kg balikbayan box is at rest on a ramp inclined at an angle 15 degrees. The coefficients of…

A: In case the box is 50 kg please refer to the below answer. The answer would be different from the…

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

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: It takes the elevator in a skyscraper 4.0 s to reach its cruising speed of 10 m/s. A 60 kg passenger…

A: Given data: Time taken by the elevator, t=4.0 s Cruising speed is v=10 m/s Mass of passenger is m=60…

Q: Mary applies a force of 72 N to push a box with an acceleration of 0.41 m/s?. When she increases the…

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Q: A 10-lb block of steel is at rest on a horizontal table. The coefficient of static friction between…

A: Given data: The mass of the block, m=10 lb. The coefficient of static friction between the block…

Q: A box (550 kg) sits inside the trailer of a semi truck at a stoplight. When the light turns green,…

A: (a) In this FBD, it is showing that when the truck is moving towards the left, then according to…

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: (a) A 1 kg block of wood sits on a 30 degree incline. If an applied force of 10 N causes the block…

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Q: Two people are pushing an object. The first person applies 600N of force to the West. The net force…

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Q: Suppose you have a 150-kg wooden crate resting on a wood floor. The coefficients of static and…

A: (a)The max frictional force exerted horizontally on the crate and the floor is,Substitute the…

Q: 3. A hanging object is supported by two strings. The tension of each string and the angle of the…

A: Given data: The tensions in the cables are 150 N and 95 N. Need to determine the angle and object's…

Q: 7. A2 kg box is pushed with a force of 30 N at an angle of 60 degrees below the positive x axis and…

A: Given data *The mass of the box is m = 2 kg *The given angle is θ=600 *The given force is F = 30 N…

Q: A 105-kg baseball player slides into second base. The coefficient of kinetic friction between the…

A: (a) The frictional force is given by, f = µkN f = µkmg f = 0.659 * 105 * 9.8 f = 678.11 N

Q: A crane is pulling a load (weight = 818 N) vertically upward. (a) What is the tension in the cable…

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Q: Chapter 06, Problem 093 (2.1)2 A 1.0 kg box is initially at rest on a horizontal surface when att =…

A: a) It is given that the box starts moving after t = 2.8 s, thus, the force applied at that instant…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!