A 2.5 kg mass is initially at rest on a horizontal surface. An applied force acts in the +x direction resulting in a displacement of 1.50 m. If the speed of the mass is 4.00 m/s at the 1.50 m mark, what net work was done?

A 4.8 kg box has an acceleration of 1.6 m/s? when it is pulled by a horizontal force across a surface with 4, = 0.50. Find the work done over a distance of 22 cm by the following forces. (Enter your answers in joules.) (a) the horizontal force (b) the frictional force (c) the net work (d) What is the change in kinetic energy of the box?

A person pushes a 15.3-kg shopping cart at a constant velocity for a distance of 36.2 m on a flat horizontal surface. She pushes in a direction 21.8 ° below the horizontal. A 50.5-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the shopper exerts? Determine the work done by (b) the pushing force, (c) the frictional force, and (d) the gravitational force.

An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. ?1 is 18.1 N acting due east, ?2 is 28.6 N acting due north, ?3 is 39.2 N acting due west, and ?4 is 20.7 N acting due south. How much total work is done on the object in 4.44 s, if it has a mass of 22.0 kg ? total work done on object:

An applied force of 14.4 N acts on a 2.50 kg mass that is initially at rest. Over a distance of 2.35 m, the object changes its kinetic energy by 19.7 J. What amount of work is done by kinetic friction?

A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it reaches a final velocity of 6.05 m/s in a distance of 15.6 m. The coefficient of friction between the ice and runners of the sled is 0.200, and the weight of the child and the sled is 375 N. Find the work done by the force pushing the sled.

A block of mass m = 4.00 kg is pushed a distance d = 2.50 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N directed at an angle θ = 28.0° below the horizontal as shown in the figure below. (a) Determine the work done on the block by the applied force. (b) Determine the work done on the block by the normal force exerted by the table. (c) Determine the work done on the block by the force of gravity. (d) Determine the work done by the net force on the block.

A particle is subject to a force Fx that varies with position as shown. Find the work done by the force on the particle as it moves (a) from x = 0 to x = 5.00 m, (b) from x = 5.00 m to x = 10.0 m, and (c) from x = 10.0 m to x = 15.0 m. (d) What is the total work done by the force over the distance x = 0 to x = 15.0 m?

A 2.28 kg block is pushed 1.69 m up a ver- tical wall with constant speed by a constant force of magnitude F applied at an angle of 60.8° with the horizontal. The acceleration of gravity is 9.8 m/s². 60.8° F 2.28 kg If the coefficient of kinetic friction between the block and wall is 0.631, find the work done by F. Answer in units of J. Answer in units of J. Your response... i Previous Responses X #1.37.76 PALETTE

A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it reaches a final velocity of 6.60 m/s in a distance of 12.8 m. The coefficient of friction between the ice and runners of the sled is 0.200, and the weight of the child and the sled is 335 N. Find the work done by the force pushing the sled.