You have a crate full of books with a total mass of 32 kg that you...
By pulling a on rope attached to a crate of mass 77.0 kg, the crate is dragged across a floor. Let the coefficient of static friction between the crate and the floor be 0.830 and the angle between the rope and horizontal is 39.1 °. Find the minimum force required to move the crate. At a later time the crate is now dragged with this same force, and has already started moving, on a wet floor where the kinetic friction...
A crate of books has a weight 455 N. A rope is attached to the crate. You take the rope and pull the crate at a constant speed along a concrete floor for a distance of 18.4 m. You pull the rope at an angle of 28.5 degrees. The co-efficient of kinetic friction between the wooden crate and the concrete floor is 0.332 Find the following Tension in the rope The work done by you pulling the crate Check
1. You have one last large 50 kg crate to move from your apt to your car and your inconsiderate roommate took the cart with him. So in order to move the crate, you tie a string to it and pull at an angle of 30° above the horizontal such that you move the crate along at a relatively constant speed. The coefficient of kinetic friction between the floor and the crate is 0.2 and the coefficient of static friction...
You pull a your friend along in a sled (combined mass is 65 kg), by pulling the rope at an upward angle of 20 degrees with respect to the ground with enough force to keep the sled moving at a constant velocity of <3,0, 0> m/s. The coefficient of kinetic friction between the ground and the sled is 0.15. (a) Draw a force diagram for the friend/sled system. (b) Once you get to constant velocity, you pull the sled 15...
Use components to calculate the magnitude R and direction of the vector sum (the resultant) R= A + B. Problem 2-Newton's laws, friction force (20 points) A delivery company has just unloaded a crate full of home exercise equipment in your driveway. Suppose you try to move the crate by pulling it by the rope at an angle of 37° above the horizontal. How hard do you have to pull to keep the crate moving horizontally with constant velocity? Weight...
A large crate with mass m rests on a horizontal floor. The coefficients of friction between the crate and the floor are \mu _{\rm{s}} and \mu _{\rm{k}}. A woman pushes downward at an angle \theta below the horizontal on the crate with a force \vec F. A)What magnitude of force \vec F is required to keep the crate moving at constant velocity? B)If \mu _{\rm{s}} is greater than some critical value, the woman cannot start the crate moving no matter...
a worker in a warehouse attempts to move a crate of mass 100 kg by pulling it with a force directed at an angle of 25.8 above the horizontal. He finds that for any pull force below 610 N the crate does not move. What is the coefficient of static friction between floor and crate?
You are a fitness trainer developing an exercise that involves pulling a heavy crate across a rough surface. You attach a rope to a crate of mass M = 45.0 kg and place it on a carpeted track. Using your physics expertise, you have already determined that the coefficient of kinetic friction between the crate and the carpet is μk = 0.430. To test the apparatus, you have one of your employees pull on the rope as hard as she...
A 27 kg crate rests on a floor. A horizontal pulling force of 110 N is needed to move the crate with a constant velocity. What is the coefficient of kinetic friction between the crate and the floor?
A monkey purchases a crate of bananas at the warehouse. The total mass of the crate plus bananas is 45.00 kg. The monkey needs to pull the crate across the rough horizontal warehouse floor to the door. The coefficients of friction between the crate and the floor are μs = 0.18 and μk = 0.15. The monkey attaches a vine around the crate and pulls on the vine at an angle of exactly 40.00o above the horizontal. He pulls with...