an applied force of 40.0 N j lifts an object straight up a distance of 1.20 m. it the object has a mass of 2.50 kg and is initially at rest what amount of work is done by the applied force?

Do it quickly

A 1410-kg car is traveling with an initial speed of 24.0 m/s. Determine the car's speed after -1.95 x 105 J of net work is done on the car. m/s

A boy is pulling his sister in a wagon. He exerts a force of 40.5 N at an angle of 30 degrees.  1) how much work is done by the boy if he pulls his sister 29.5 m?

Number 16

A crate with a mass of 37.0 kg is pushed with a horizontal force of 150 N. The crate moves at a constant speed across a level, rough surface a distance of 5.95 m What is the work done (in J) by the 150 N force? J=? What is the coefficient of kinetic friction between the crate and the surface?

A sled of 50 kg mass moves along a smooth horizontal surface at 7 m/s. The sled encounters a rough spot that exerts a force of -90 Nt on the sled.  Calculate: a) What is the acceleration of the sled? b) Calculate how much work is done by the frictional force on the sled if the patch is 15 m in length. c) What is the sled's final velocity as it leaves the rough spot?

A cable “lowers” a 3000 kg elevator at a constant velocity for a distance of 35.0 m What is the work done by a) the tension in the cable and b) gravity ?

202.) The forces exerted by a rubber shock absorber varies with the displacement as shown. Estimate the work done to the ball shown after it has displaced the shock absorber 8.0 cm. Has the ball gained or lost energy? O Work Rubber Shock Absorber Force (Newtons) Clearly indicate how you make your estimate. Work 1.7NM Has the ball gained or lost energy? 40 30 20 10 4 8 10 Displacement (cm)

A child pulls a box of toys using a steady force of 10. N at an angle 60o from the horizontal. How much work is done by the child after the box moves with a distance of 4.0 m horizontally?