Determine the work done by nonconservative forces if an object with mass 10kg is shot up in the air at returns to the same height with speed .

During takeoff, a rocket goes from at of elevation to at of elevation.

Estimate the amount of work done by the rocket engine. Neglect any mass change due to burning of fuel.

A train of mass goes from to in . Calculate the magnitude of force from the brakes.

A car of mass is accelerated from to in 2s.

Determine the work done on the car in this time frame.

Consider a constant force, given below, that acts on an object as it moves along the path , also given below. Calculate the work done on the object. The units of the force and path are and , respectively.

A large block is sitting on the floor. The block is . You pull the block with a rope, applying of force at a 25 degree angle with respect to the horizon. How much work did you do on the block if you moved it ? The block moves at a constant speed while you are pulling it.

A 50kg man pushes against a wall with a force of 100N for 10 seconds. How much work does the man accomplish?

A model rocket weighing 5kg has a net propulsion force of 50N. Over a small period of time, the rocket speeds up (with constant acceleration) from an initial velocity of to a final velocity of . Let us assume that the loss of mass due to fuel consumption is negligible and that the net force is along the direction of motion. How much net work was done on the rocket?

Juri is tugging her wagon behind her on the way to... wherever her wagon needs to go. The wagon repair shop. She has a trek ahead of her--five kilometers--and she's pulling with a force of 200 newtons. If she's pulling at an angle of 35 degrees to the horizontal, what work will be exerted on the wagon to get to the repair shop?

Raul is pushing a broken down car across the flat expanse of the Mojave to his shop.

If his shop is three kilometers away and he pushes with a Herculean force of one thousand newtons in the direction of his shop, how much work will be done on the car?