There's no answer to this. "Once the crate is sliding, how hard do you push to keep it moving at constant velocity." What's the answer"
There's no answer to this. "Once the crate is sliding, how hard do you push to...
1. You want to move a 500-N crate across a level floor. To start the crate moving, you have to pull with a 230-N horizontal force. Once the crate breaks loose and starts to move, you can keep it moving at constant velocity with only 200 N. What are the coefficients of static and kinetic friction? 2. In the previous example, suppose you move the crate by pulling upward on the rope at an angle of 30.0◦ above the horizontal....
You have a crate full of books with a total mass of 32 kg that you have to move from your bedroom to the door of your apartment using a rope attached to the crate. The coefficient of static friction between the crate and the floor is 0.65, and the coefficient of kinetic friction is 0.45 (a) Pulling the rope horizontally, what is the minimum force you have to pull with to get the crate to start moving? (b) Once...
To keep moving a crate at a constant speed, you push it with a force of 430 N horizontally. The coefficient of kinetic friction is 0.16. How much does the crate weigh?
Suppose you have to move a heavy crate of weight 875 N by sliding it along a horizontal concrete floor. You push the crate to the right with a horizontal force of magnitude 300 N, but friction prevents the crate from sliding. Part A Draw a free-body diagram of the crate. Part B What is the magnitude Fp of the minimum force you need to exert on the crate to make it start sliding along the floor? Let the coefficient...
An 18 kg wooden crate is initially at rest on a wooden floor. A worker comes to move it and pushes it across the floor as shown in the diagram below. The worker applies a force, F, at θ = 40 degrees from the horizontal (below the top of the box). A. How hard must the worker push to start the box sliding across the floor? B. Once the box starts sliding, how hard will the worker push on the...
This is details for Part C: Suppose you have to move a heavy crate of weight 875 N by sliding it along a horizontal concrete floor. You push the crate to the right with a horizontal force of magnitude 300 N, but friction prevents the crate from sliding. Part C: Now assume that the crate is sliding along the floor with constant velocity. What is the magnitude Fp of the force you need to exert on the crate to make...
When you push a 1.80 kg book resting on a tabletop it takes 1.90 N to start the book sliding. Once it is sliding, however, it takes only 1.50 N to keep the book moving with constant speed. What are the coefficients of static and kinetic friction between the book and the tabletop? static kinetic
You see the boy next door trying to push a crate down the sidewalk. He can barely keep it moving, and his feet occasionally slip. You start to wonder how heavy the crate is. You call to ask the boy his mass, and he replies “50 kg.” From your recent physics class you estimate that the static and kinetic coefficients of friction are 0.8 and 0.4 for the boy’s shoes, and 0.5 and 0.2 for the crate. Estimate the mass...
Suppose you have to move a heavy crate of weight 875 N by sliding it along a horizontal concrete floor. You push the crate to the right with a horizontal force of magnitude 300 N, but friction prevents the crate from sliding. What is the magnitude Fp of the minimum force you need to exert on the crate to make it start sliding along the floor? Let the coefficient of static friction μs between the crate and the floor be...
You push a crate of mass m up a ramp inclined at an angle A with a force parallel to the ramp but of varying magnitude. The coefficient of friction between the crate and ramp is u, and the speed of the crate, which starts from rest, is v at the end of the ramp of length d. a) Use the work-energy theorem to find the work done by the non-constant force in moving the crate up the ramp. b)...