A loaded grocery cart is rolling across a parking lot in a strong wind. You apply a constant force F⃗ =(34N)i^−(44N)j^ to the cart as it undergoes a displacement s⃗ =(−8.6m)i^−(3.5m)j^. How much work does the force you apply do on the grocery cart?

An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.8× 104 kg, and the force causes its speed to change from 7100 to 4900m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 2× 106 m determine the magnitude of the force.

A very smooth plank of Length L = 2.0 m is evelated to an angel of beta = 30.0 degree above the horizontal. A small ice cube of mass m = 12g is placed at the top of the plane and let go with zero initial velocity. How long does it take for the ice cube to reach the bottom of the plank? How much work was done by gravity on the ice cube?

A 5.0-kg block that initially has a speed of 6.0 m/s is moving in a straight line on a level surface where there is kinetic friction between the block and the surface. What is the magnitude of the work done by the frictional force after the block comes to rest?

The only force acting on a 2.0 kg canister that is moving in an xy plane has a magnitude of 5.0 N.The canister initially has a veloc- ity of 4.0 m/s in the positive x direction and some time later has a velocity of 6.0 m/s in the positive y direction. How much work is done on the canister by the 5.0 N force during this time?

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.

An object is acted on by the force shown in the figure(Figure 1). What is the final position of the object if its initial position is x = 0.40 mm and the work done on it is equal to 0.21 J? Express your answer using two significant figures.

A 2.03 kg mass is initially at rest upon a horizontal surface. An applied force of 17.6 N i then acts on the object over a distance of 2.92 m. If the final velocity of the object is 4.09 m/s i, what is the work done by kinetic friction over that distance moved?

The only force acting on a 1.3 kg canister that is moving in an xy plane has a magnitude of 2.9 N. The canister initially has a velocity of 4.5 m/s in the positive x direction, and some time later has a velocity of 4.1 m/s in the positive y direction. How much work is done on the canister by the 2.9 N force during this time?

An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 3.5× 104 kg, and the force causes its speed to change from 7100 to 5400m/s. (a) What is the work done by the force? (b) If the asteroid slows down over a distance of 1.8× 106 m determine the magnitude of the force. (a) Work = Choose your answer for sign in part (a) here                                                             Type your answer for part (a) here Choose your answer for units in part (a) here                                                             (b) F = Type your answer for part (b) here Choose your answer for units in part (b) here