A constant force of 20 N is applied to an object of mass 8.0 kg at an angle of 25° with the horizontal. What is the work done by this force on the object if it causes a displacement of 2.0 m along the horizontal direction?

A dinner plate has a mass of 590g. It is pushed 90.0cm along a table by a constant force of F= 3.60N directed at an angle of 26.0 degrees below the horizontal, as shown in the image below. If the coefficient of kinetic friction between the plate and the table's surface is 0.440, calculate; a. the normal force exerted on the plate by the table. b. the work done by the applied force F. c. the work done by the force of kinetic friction. 90 cm

A 359 kg box is pulled 7.00 m up a 30° frictionless, inclined plane by an external force of 5175 N that acts parallel to the plane. Calculate the work done by the external force. work done by the external force: Calculate the work done by gravity. work done by gravity: Calculate the work done by the normal force. work done by the normal force: J J J

A crate with mass m = 33.3 kg being pushed up an incline that makes an angle φ = 22.7 degrees with horizontal. The pushing force is horizontal, with magnitude P, and the coefficient of kinetic friction between the crate and the incline is μ = 0.358. Consider the work done on the crate as it moves a distance d = 5.32 m at constant speed. a. What is work done by the pushing force, in joules?  b. What is the work done by friction, in joules?  c. What is the work done by gravity, in joules?  d. What is the net work, in joules?

A 59 kg rollerblader skates across a skating rink floor. The graph below shows the net external force component acting on the skater along the displacement as a function of the magnitude of the displacement d.   the work done (in J) by the force on the rollerblader as he moves from 0 to 20.0 m   the work done (in J) by the force acting on the rollerblader from 20.0 m to 30.0 m

A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well that is hy = 9.5 m deep. The farmer uses a force F1 = 59.5 N to pull the bucket of water directly upwards. The total mass of the bucket of water is mb + mw = 3.1 kg. a.Calculate how much work Wf in J the farmer does on the bucket of water (via the rope) to raise it to ground level.  b.Calculate how much work Wg in J gravity does on the bucket filled with water as the farmer lifts it up the well.  c. Calculate the net work Wnet in J done on the bucket of water by the two forces F1 and Fg.

A 325 N force is pulling on an 85.0 kg refrigerator as it slides across a horizontal floor. The force acts at an upward angle of 25.0° above the horizontal. The coefficient of kinetic friction between the refrigerator and the floor is 0.150, and the refrigerator moves a distance of 5.50 m. Find (a) the work done by the pulling force, (b) the work done by the force of kinetic friction, (c) the net amount of work done on the refrigerator, and (d) if the refrigerator was initially at rest determine the speed of the refrigerator after the 5.50m displacement. (e) Include a force (or free-body) diagram of the situation. [Diagram 2 pts.]

Do the following situations result in positive work, negative work, or zero work? Force is perpendicular to displacement. A force slows an object down. Force acts in the same direction as displacement. Force acts in the opposite direction of displacement. A force acts on an object that remains stationary.

The overworked Amazon delivery person is driving up a steep hill with an incline of 26° when a box they forgot to secure starts sliding toward the back of the truck. The 3.5 kg box starts from rest near the drivers seat and slides 2.1 m along the floor to the rear door. The coefficient of kinetic friction between the box and the floor is 0.36. What is the work done by the weight of the box? Wmg 31.6 J What is the work done by the Normal Force? WN = 0 What is the work done by the frictional force? Wfk = 23.31 What is the net work done on the box? Wnet What is the change in kinetic energy for the box? AKE How fast is the box moving just before it hits the rear door? Vfinal = J J X J J ms

A student is pulling her wagon along a flat level ground with a 50.0N force 30 degrees above the horizontal. This applied force is against a horizontal frictional force of 30.0 N. If the student travels 8.00 meters east, what is the net work is done on the wagon? 1. 160 J 2. 346 J 3. 586 J 4. 106 J