A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal surface of length { = 0.65 m as in the figurebelow. If the coefficient of kinetic friction between the crate and rough surface is 0.352 and he exerts a constant horizontal force of 283 N on the crate.(a) Find the magnitude and direction of the net force on the crate while it is on the rough surface.magnitude 34.36directionopposite as the motion of the crate O(b) Find the net work done on the crate while it is on the rough surface.22.33ayThe response you submitted has the wrong sign. J(c) Find the speed of the crate when it reaches the end of the rough surface.0.53m/s3Need Help?Watch ItRead It The system shown in the figure below is used to lift an object of mass m = 49.0 kg. A constant downward force of magnitude Fis applied to the looseend of the rope such that the hanging object moves upward at constant speed. Neglecting the masses of the rope and pulleys, find the following.T2wy mdocu(a) Find the required value of F.240.1legy(b) Find the tensions T, T2, and T3 (T, indicates the tension in the rope which attaches the pulley to the ceiling.)T- 240.1T,- 460 2ter 3T- 480.2(c) Find the work done by the applied force in raising the object a distance of 1.00 m.480.2Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. kNeed Help?ReadWahma's doc

(b) Solution : The work done on the crate on a rough surface is, W = Force × Displacement Heren…

Answered: A man pushing a crate of mass m = 92.0…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The figure below shows an initially stationary block of mass m on a floor. A force of magnitude F = 0.510mg is then applied at upward angle 0 = 19°. (a) What is the magnitude of the acceleration of the block across the floor if the friction coefficients are us = 0.590 and uk = 0.505? m/s? (b) What is the magnitude of the acceleration of the block across the floor if the friction coefficients are ug = 0.395 and uk = 0.295? m/s2
As shown in the figure below, a box of mass m = 68.0 kg (initially at rest) is pushed a distanced = 69.0 m across a rough warehouse floor by an applied force of F = 236 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. Determine the following. (For parts (a) through (d), give your answer to the nearest multiple of 10.) F 30 rough surface Iwwwwwwwwwwww (a) work done by the applied force WA = (b) work done by the force of gravity (c) work done by the normal force WN = (d) work done the force of friction W; = (e) Calculate the net work on the box by finding the sum of all the works done by each individual force. WNet = (f) Now find the net work by first finding the net force on the box, then finding the work done by this net force. WNet = Additional Materials O Reading
A horse is harnessed to a sled having a mass of 211 kg, including supplies. The horse must exert a force exceeding 1200 N at an angle of 38.3° (above the horizontal) in order to get the sled moving. Treat the sled as a point particle. (a) Calculate the normal force (in N) on the sled when the magnitude of the applied force is 1200 N. (Enter the magnitude.) N (b) Find the coefficient of static friction between the sled and the ground beneath it. (c) Find the static friction force (in N) when the horse is exerting a force of 6.00 ✕ 102 N on the sled at the same angle. (Enter the magnitude.)
Q 5)A force vector F =3i + 3j N is applied on 5 kg mass of body on nonfrictionless horizontal surface. The velocity function of body is v = t + 2 . find the following : 1) frictional force (fs ) 2) the coefficient of friction of surface (μ) . (answer fs =1.7 N , u =0.34)
In the figure, a 5.40 kg block is sent sliding up a plane inclined at 0 = 37.0° while a horizontal force F of magnitude 50.0 N acts on it. The coefficient of kinetic friction between block and plane is 0.340. What are the (a) magnitude and (b) direction (up or down the plane) of the block's acceleration? The block's initial speed is 4.40 m/s. (c) How far up the plane does the block go? (d) When it reaches its highest point, does it remain at rest or slide back down the plane? (a) Number i Units (b) (c) Number Units (d)
A block moves on an inclined surface with an initial speed of 1.6 m/s. After sliding down the incline of distance of L=2 m, the speed of the block is 2.2 m/s. the coefficient of friction between the block and the surface is 0.34. find the angle of the incline
Here we have a block of mass (m=2.50kg) resting on a place inclined at an angle of ø=30° to the horizontal. The coefficient of static friction between the block and the plane is Ustatic = 0.135 and the block is stationary but just on the point of sliding up the slope. The diagram shows the four forces acting on the block: an applied force F1 acting up the slope, the block's weight mg, the normal reaction force N and the force of static friction, Ff. In this case, the force of static friction acts down the slope, opposing the tendency of the block to move up the slope. Find the the maximum magnitude of the applied force F1 that can be exerted if the block is to remain stationary.
A block with a mass of 2.0 kg is released from rest and slides down a long, smooth ramp. The incline of the ramp is 41.0 degrees, and the coefficient of kinetic friction is ?=0.259 How far will the block travel in 1.001.00 s, assuming it does not reach the end of the ramp?
A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 5.60-kg puck has a velocity of 2.00î m/s at one instant. Eight seconds later, its velocity is (6.00î + 6.0ĵ) m/s. (a) Assuming the rocket engine exerts a constant horizontal force, find the components of the force. (i+j) (b) Find its magnitude.
A block of mass m rests on a plane inclined an angle with the horizontal. A spring with force constant k is attached to the block. The coefficient of static friction between the block and plane is  s. The spring is pulled upward along the plane very slowly. (a) What is the extension of the spring the instant the block begins to move? (b) The block stops moving just as the extension of the contracting spring reaches zero. Express k (the kinetic coefficient of friction) in terms of s and .
One end of a 34-m unstretchable rope is tied to a tree; the other end is tied to a car stuck in the mud. The motorist pulls sideways on the midpoint of the rope, displacing it a distance of 2 m (assume the car slides forward slightly in response to this, but then become stuck again). If he exerts a force of 99 N under these conditions, determine the force exerted on the car. F=F= Incorrect N

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