A box with a mass of 6.0 kg is accelerated from rest by force along a floor at a rate of 2.0 m/s^2 for 7.0 s. Determine the net work performed on the box.

A cable exerts a constant upward tension of magnitude 2.06 X 104 N on a 1.80 X 10³ kg elevator as it rises through a vertical distance of 4.10 m. (a) Find the work done by the tension force on the elevator (in J). (b) Find the work done by the force of gravity on the elevator (in J).

A box of mass 12955 kg is pulled from rest up a 15.5 m long incline that makes an angle of 25.0° with the horizontal. At the top of the incline, the speed of the box is 3.35 m/s. What is the work done by the pulling force? (neglect friction.).

A 17.9 kg block is dragged over a rough, horizontal surface by a constant force of 111 Nacting at an angle of angle 31.1◦above the horizontal. The block is displaced 60 m and the coefficient of kinetic friction is 0.152. Find the work done by the 111 N force. The acceleration of gravity is 9.8 m/s2.Answer in units of J. Find the magnitude of the work done by the force of friction.Answer in units of J What is the sign of the work done by the frictional force?1. positive2. negative3. zero Find the work done by the normal force.Answer in units of J What is the net work done on the block?Answer in units of J.

An applied force of 20 Ni pushes an object that is initially at rest over a horizontal surface. The coefficient of kinetic friction is 0.450 and the mass is 1.45 kg. If the net work done at some point is 42.7 J, what is the object's speed at that point?

A horizontal force of 12 N is applied to a 4.0 kg box that slides on a horizontal surface. The box starts from rest, moves a horizontal distance of 10 meters, and obtains a velocity of 5.0 m/s. The surface has friction. (a) Calculate the frictional force. (b) Calculate the work done by friction.

A tension force of 175 N inclined at 20.0 degree above the horizontal is used to pull a 40.0-kg packing crate a distance of 6.00 m on a rough surface. If the crate moves at a constant speed, find (A) the work done by the tension force and (b) the coefficient of kinetic friction between the crate and surface.

A 42 kg box is being pushed a distance of 7.0 m across the floor by a force P whose magnitude is 155 N. The force P is parallel to the displacement of the box. The coefficient of kinetic friction is 0.25. Determine the work done on the box by each of the four forces that act on the box. Be sure to include the proper plus or minus sign for the work done by each force.applied force Jfrictional force Jnormal force Jgravity J

An elevator having a mass of 585 kg is raised a distance of 32 m. Determine the work done, neglecting frictional effects and the work required for acceleration.

A box with a mass 2.0 kg that initially slides on the floor with a speed of 5.0 m/s is accelerated at a ratio of 4.0 m/s^2 times 10.0s. Find the net work done on the box.