7. A2 kg box is pushed with a force of 30 N at an angle of 60 degrees below the positive x axis and slides to the right. The coefficient of kinetic friction is 0.15. a) Draw a FBD of the situation. b) Calculate the net force on the box. c) Calculate the net acceleration of the box. Remember units for your answers.

7. A2 kg box is pushed with a force of 30 N at an angle of 60 degrees below the positive x axis and slides to the right. The coefficient of kinetic friction is 0.15. a) Draw a FBD of the situation. b) Calculate the net force on the box. c) Calculate the net acceleration of the box. Remember units for your answers.

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)...

See similar textbooks

Similar questions

A box of mass ?= 5.00 kg is at rest on a horizontal rough surface. The coefficients of static friction and kinetic friction between the surface and the box are μ?= 0.450 and μ?= 0.400, respectively. Then, a horizontal force ?⃗ is exerted on the box. a. If the magnitude of the force ?⃗ is 12.0 N, what is the magnitude of the friction force on the block? b. If the magnitude of the force ?⃗ is 25.0 N, what is the magnitude of the acceleration of the block?
A massive block was pulled at an angle of 30o in a horizontal rough surface by a force of magnitude F enough for the block to move. If we set the +x-axis at the right, which of the following statements is true about the forces acting on the block? Explain answer. A. The direction of the frictional force experienced by the block is to the leftB. The normal force’s direction is 30 degrees above the +x-axisC. The block will not experience friction since F is just enough to move the block D. The direction of the weight of the block is about 210 degrees from the x-axis.
An adventurous model got bored and decided to try something new. She went out to the top of a steep icy road and went down on a sled. If friction is so small that it can be neglected, which of the following statements correctly describes the physics in the situation? Ad B C Only gravity acts on the model-sled between points A and B. The model-sled experiences no acceleration between A and C. The sled will stop somewhere near B. There is no force acting on the model-sled between points B and C. The sled will continue moving with constant speed from B onwards.
A cardboard box rests on the floor of an elevator. The box has a mass m = 2.75 kg and the elevator has an upward acceleration of a. a. Write an expression for the sum of the forces acting on the box in the y-direction, ΣFy, given that up is the positive y-direction. Your answer should be in terms of FN, m, and g. b. Write an expression for the normal force, FN, that the block experiences in terms of the elevator's acceleration, the block's mass, and the acceleration of gravity. c. If the elevator's acceleration has a magnitude of g in the downward direction, what would the normal force, FN1 be in Newtons? d.If the elevator's acceleration had a magnitude of g in the upward direction, what would the normal force FN2 be in Newtons?
A teenager of mass m1 = 56 kg pushes backwards against the ground with his foot as he rides his skateboard. This exerts a horizontal force of magnitude F foot = = 18.5 N. The skateboard has m2 = 2.6 kg. a. Write an expression for the magnitude of the horizontal component of force that the ground exerts on the teenagers foot, F ground. b. Write an expression in terms to given quantities for the magnitude of the skateboard acceleration, a , while the teenager is pushing backwards on the ground? c. What is the numerical value of the magnitude of the acceleration, a, in m/s square?
A block with a mass (m) of 74.7 kg slides along a horzontal surface. the coefficent of kinetic friction is .31. THe block has an ititial speed (v0) at 11.6m/s in the positive direction. 1) write and expression for the x component of the frictional force of the block experiences Ff in terms of the given variables and variables avaible. 2) what is the magnitude of the frictional force? 3) how for will the block travel before coming to rest.
9. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. Compute the value of the horizontal force P necessary to Just start the block up the incline. A. 822KN B. 832KN C. 842KN D. 852KN
A 6 kg piece of wood is locked at rest on a given horizontal surface. a. Draw all forces acting on the wood, and calculate the magnitude of each force if µs = 0.6
m A 18.2 kg block is released from rest on a 37.9 incline. It takes 3.55 seconds to slide 1.1 meters along the ramp. Find the weight of the block. Fg = 178.4 Find the acceleration of the block. a = 0.175 Find the Normal Force. FN 140.7 Find the friction. F = 6.59 XN XN XN m/s2 Find the coefficient of friction. μ = 0.029 x Question Help: Message instructor D Post to forum Submit Question
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?
1) The block on a 60° inclined plane weighs 100 pound and is held by the minimum possible force T as shown in the figure. The coefficient of both static and kinetic friction between the block and the inclined plane is 0.2, and the pulleys are frictionless. T а. Draw the free body diagram (FBD) of the block showing all forces and their directions acting on it. b. Compute all unknown forces including T shown in your FBD. Now if you want to move the block upward on the inclined plane С. by applying minimum possible force T then draw the FBD of the block showing all forces with directions acting on it. d. Now assume the pulleys are stuck (do not rotate any more) and the 60° rope slides over the stuck pulleys as the block moves up. the coefficient of both static and kinetic friction between the pulley surface and the rope is 0.1. Draw the FBD of the block showing all forces with directions acting on the block when the block is pulled upward by the minimum rope force T. е. For the stuck…
1. A 90.0 kg crate is being pushed across a level floor at a constant speed by a 260 N force at an angle of 28.0° below the horizontal. The surface is not frictionless. a) Draw a free body diagram that includes all of the forces exerted on the crate, including a labeled system coordinate. FN FC0528 mg b) What are the algebraic expressions for the normal force (FN) and the coefficient of kinetic friction between the crate and the floor? EF Calculate the magnitude of the normal force and the coefficient of kinetic friction between the crate and the floor. 28