Suppose you are performing an experiment on a crate of 45-kg tools resting on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 313 N. After that you must reduce your push to 208 N to keep it moving at a steady 25 cm/s. a. What are the coefficients of static and kinetic friction between the crate and the floor? b. Suppose you were performing the same experiment on this crate but were doing it on the moon instead, where the acceleration due to gravity is 1.62 m/s2, what magnitude push would cause it to move?

Q: A 25 kg object that has a coefficient of friction 0.3, is sitting on a level surface and you push on…

A: Mass of object m = 25 kg Coefficient of friction u = 0.3 Force applied on object = 40 N

Q: A crate with mass 33.5 kg initially at rest on a warehouse floor is acted on by a net horizontal…

A: Given mass of crate = m = 33.5 kg initial velocity of crate = u = 0 net horizontal force = F = 16.0…

Q: When two objects are in contact with no relative motion, which of the following statements about the…

A: When the two systems are in contact and moving relative to one another, then the friction between…

Q: box full of books rests on a wooden floor. The normal force the floor exerts on the box is 282 N.…

A:

Q: Two blocks are on an incline plane as shown. Block A has a mass of 20kg and Block B has a mass of…

A: Solution:-

Q: A sledder of mass m is sliding down a snowy hill with initial speed vo. The hill steepness is a…

A: (a)Here the force of friction is kinetic in nature, since there is relative motion.

Q: Your forehead can withstand a force of about 6.0 kN before fracturing, while your cheekbone can only…

A:

Q: A 12.1-kg box starting at rest on a horizontal floor is acted on by a net horizontal force of 6.05…

A: Given data:  Mass (m) = 12.1 kg Initial velocity (u) = 0 m/s Horizontal force (F) = 6.05 N Time (t)…

Q: Consider dropping a baseball from rest at an altitude of 300 m. Assume that the baseball has a drag…

A:

Q: 13. A 3.00 friction bet incline at t a. What mag o. What is th . What is th What is th What is the…

A:

Q: 1. Above a plane inclined 15° is a cart with weight connects to a bucket with weight w₂. Assume that…

A: The inclination of the plane with the horizontal, θ=15° The mass of the bucket, m=1.5 kg Weight of…

Q: 3. A 2.65-kg box is sliding down a ramp with an initial speed of 1.25 m/s. The angle of the ramp is…

A: Given:-  The mass of the box is m = 2.65 kg  The initial speed of the mass is u = 1.25 m/s  The…

Q: A 140 kg box is pushed by a person with 255 N force across a level floor at a constant speed at…

A:

Q: A 49 kg rock climber is climbing a 'chimney' between two rock slabs as shown below. The static…

A: Step 1: Step 2: Step 3: Step 4:

Q: A 10 kg crate is placed on a horizontal conveyor belt. The materials are such that μs = 0.50 and μk…

A: Since there are multiple sub-parts posted, we will answer the first three sub-parts for you. If you…

Q: An old phrase used to sell cars was that they could "stop on a dime," meaning they could stop before…

A:

Q: A 200-g hockey puck is launched at an initial speed of 16 ns up a metal ramp that is inclined at a…

A:

Q: 6. A 750 kg car is moving forward at a constant speed. The coefficient of friction between its…

A:

Q: 2. You pull with a force of 255 N on a rope that is attached to a block of mass 30 kg, and the block…

A:

Q: A 20 Newton object is pulled along a flat surface at a constant speed with a force of 4.0 Newtons A.…

A: According to Newton's Second Law of motion The net external force on an object is given by F = Ma…

Q: uitcase at constant speed by pulling on a strap t an angle û above the horizontal (see figure). She…

A: Firstly make the free body diagram and balance forces in horizontal and vertical directions.

Q: A 25-kg chandelier hangs from a ceiling on a vertical 4.0-m-long wire. Part A. What horizontal force…

A:

Q: A box (400 kg) is on the floor. The coefficient of static friction = 0.8 between the box and the…

A:

Q: A physics major is cooking breakfast when he notices that the frictional force between the steel…

A:

Q: A block with mass m sits on a frictionless plane inclined at angle θ, as shown in the figure. If the…

A: In this question  we use free body diagram.

Q: A student wants to determine the weight of the heaviest object she can push up an incline with a…

A:

Q: A 20.0 kg block is placed on an incline that makes an angle of 30.0°. A man pushes up on the block…

A:

Q: What happens when the book stops moving?

A: The friction is classified into many types. A book moving across the desk is an example of sliding…

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: Some mice can survive a fall from any height; they do this flattening out their bodies to increase…

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Q: 2. A 1,480-N crate is being pushed across a level floor at a constant speed by a force F of 370 N at…

A:

Q: With a force of 4.0 Newtons, a 20 Newton item is dragged down a level surface at a constant pace. A.…

A: Given, Let fk is the kinetic friction force and μk is the kinetic friction coefficient.…

Q: A students is trying to determine the maximum rate at which a truck can accelerate to the right…

A: NEWTON'S LAW OF MOTION

Q: When an object, such as a soccer ball or car, moves, the air that the object moves through tries to…

A: Drag depends directly on the mass. The drag also depends in a complex way on two other properties of…

Q: A physics major is cooking breakfast when he notices that the frictional force between the steel…

A:

Q: a. Give an example of the motion of an object in which the frictional force on the object is…

A:

Q: A person is trying to lift a box off the floor. The box has a mass of 55kg and the person can lift…

A: In this question a person is trying to lift a box of 55kg , with a force of 300 N.

Q: A 2.5kg concrete block sliding on a vertical wall is being acted upon by a force P as shown in the…

A:

Q: frictionless

A: The kinetic friction is the resistance force that exists between the moving object and surface in…

Q: An object of mass M-40 kg is pushed up an inclined plane with an acceleration of 0.5 m/s by a force…

A:

Q: and the floor. c The applied pulling force is steadily increased. Just before the box moves forward,…

A:

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”