a. b. Find the work done by the force of friction. Find the coefficient of friction.
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- 1. How much work was done by a machine that exerts a 5000 N force to compress a 10-meter-long steel bar so it becomes 3 meters in length. 2. Find the angle between the 500 N applied force and the 3-meter displacement if the work done is 1500 Joules. Hiii please write a solution thank youA 2.46 kg block moves along a frictionless surface with a speed of 7.83 m/s when it encounters a rough shallow hill, whose sides have a length of l=5.21 m. The hill is low enough so that the block can make it over the hill. Because the surface of the hill is rough (shown in orange in the figure), the block experiences a frictional force of 2.23 N while on the hill. a) What is the speed of the block after it traverses the hill?A horizontal force of 150 N is applied to push a 40.0 kg box a distance 6.00 m on a rough horizontal surface. If the box moves quickly constant, determine: A. The work that reverses the 150 N force. B. The coefficient of kinetic friction between the box and the surface.
- A box slides down a plank of length d that makes an angle of θ with the horizontal as shown. μk is the kinetic coefficient of friction and μs is the static coefficient of friction. 1.Enter an expression for the minimum angle θ (in degrees) the box will begin to slide. 2.Enter an expression for the nonconservative work done by kinetic friction as the block slides down the plank. Assume the box starts from rest and θ is large enough that it will move down the plank. 3.For a plank of any length, at what angle θ (in degrees) will the final speed of the box at the bottom of the plank be 0.85 times the final speed of the box when there is no friction present? Assume μk = 0.39.ACTIVITY 4: DECODE THE MESSAGE Directions: Determine the work done by the force on a given system in the following problems. Then, decode the message. I hv a e 4 Displacement (m E You pull your bag with a force of 30 N parallel to the ground classroom 20 m away. How much work will you do on your bag? MA crate is being lifted into a truck. If it is moved with a 2470 N force and 3650 J of work is done, then how far is the crate being lifted? M You must exert a force of 4.5 N on a book to slide it across a table. If you do 2.7 J of work in the process, how far have you moved the book? towards yourOn a horizontal surface with µk = 0.70, a 5kg object is dragged with 350N force directed due East. a. Draw all forces, and calculate the work done by each force if the object moves from 3 m to 10 m on the x-axis. Calculate the total work.
- A 10 kg block is pushed with a constant external force of 10 Newtons horizontally on a floor with a kinetic friction coefficient equal to 0.1 Important: The acceleration due to gravity, in this problem, has a magnitude of 10m/s While the block is pushed over a distance of 9 meters, a. What is the work done by the pushing force? b. What is the work done by the normal force on the block? c. What is the work done by the frictional force on the block d. What is the total amount of work done on the block?Need answer to part B, C, and D Eq 9.13: ΔKtotal = Wtotal Eq 9.17: W = F (Δr) cos θ GRAVITY SHOULD BE INCLUDED IN SOLUTION!The force required to compress a non-standard spring as a function of displacement from equilibrium x is given by the equation F(x) = ax2 - bx, where a = 65 N/m2, b = 4 N/m, and the positive x direction is in the compression direction of the spring.a. Write a general equation in terms of the given variable for the work required to compress this spring from equilibrium to any point xp.