If a book has a mass of 0.75 kg, then what is the work done by gravity as the book falls to the floor from a height of 1 meter?
A weight lifter lifts a mass of 50 kg barbell from the floor to a height of 0.5 meter. (a) Calculate the work done by the weight lifter on the barbell (b) Calculate the work done by the gravitational force.
5) A weight lifter lifts a mass of 50 kg barbell from the floor to a height of 0.5 meter. 5a) Calculate the work done by the weight lifter on the barbell 5b) Calculate the work done by the gravitational force.
8. (10 pts) Given a crate of mass 2000 kg: a. How much work is done in raising the crate 6 meters above the floor? b. What will the crate's potential energy be at that height:
8. (10 pts) Given a crate of mass 2000 kg: How much work is done in raising the crate 6 meters above the floor? а. What will the crate's potential energy be at that height? b.
8. (10 pts) Given a crate of mass 2000 kg: 2. How much work is done in raising the crate 6 meters above the floor b. What will the crate's potential energy be at that height?
How much work is done on a 5 kg block if it is to be moved on a ramp 30° above the horizontal and height of 1 meter? What are the values of work done by each force?
 A mass m1 = 4.3 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 3.4 kg which hangs freely from the string. When released, the hanging mass falls a distance d = 0.87 m. 1-How much work is done by gravity on the two block system? 2) How much work is done by the normal force on m1? 3) What is the final speed of the two blocks? 4)...
a) how much work is done in raising a 50.0 kg crate a distance of 1.5 m above a storeroom floor? b) what is the change of potential energy as a result of this move? c) how much kinetic energy will the crate have as it falls and hits the floor? please show work
1)A toy car with a mass of 4 kg is driving up an inclined ramp. It starts at a speed of 3 m/s, and after it has traveled a distance of 2 m up the ramp it comes to a stop. How much total work was done on the toy car? 2)A girl lifts a 1 kilogram box vertically a distance of 1 meter, at constant speed. What is the total work done on the box (rounded to 1 significant...