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Worksheet: Work

Q1:

How much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m horizontally with a force of 5.00 N?

Q2:

A constant 20-N force pushes a small ball in the direction of the force over a distance of 5.0 m. What is the work done by the force?

Q3:

A force varies with position, as shown in the accompanying figure. Find the net work done by this force on a particle while the particle changes its position from to .

Q4:

A bullet shot from a rifle has mass of 9.3 g. The bullet travels horizontally at 330 m/s. The bullet strikes a large bag of sand, penetrating the bag to a horizontal distance of 26 cm before coming to rest. Find the magnitude of the average retarding force that acts on the bullet. Ignore any vertical motion of the bullet.