How much work does the force of friction do (in J)?

Calculate the work done (in J) by a 75.0 kg man who pushes a crate 4.30 m up along a ramp that makes an angle of 20.0° with the horizontal. (See the figure below.) He exerts a force of 540 N on the crate parallel to the ramp and moves at a constant speed. Be certain to include the work he does on the crate and on his body to get up the ramp.

The net vertical force on a box F as a function of the vertical position y is shown below.What is the work done on the box from y = 0 m to 4.0 m?Round answer to two significant digits.

How much work (in J) is done by the boy pulling his sister 26 m in a wagon as shown in the figure below? 30° d Assume no friction acts on the wagon. (Assume d = 26 m and F = 37 N. Enter a number.)

A force of F = 186 N pulls a mass of 15 kg a distance of x = 2.4 m, as shown. How much work is done by the force, F? F m E

The figure below shows an object with a mass of m = 7.60 kgthat starts from rest at point A and slides on a track with negligible friction. Point A is at a height of ha = 6.30 m. What is the net work (in J) done by the gravitational force on the object as it moves from point A to point C?

The figure below shows an overhead view of two horizontal forces pulling a box along the floor. How much work does each force do as the box is displaced 70 cm along the broken line. What is the total work done by the two forces in pulling the box this distance?

A 51 kg boy on a skate board traveling to the east with a speed of 9.9 m/s. After crossing a gravel area, his speed decreases to 1.7 m/s. Calculate the net work in joules done to the boy.

A force of F = 161 N pulls a mass of 15 kg a distance of x = 5.7 m, as shown. How much work is done by the force, F? F m m