Assignment:
An applied force of 6 Newtons acts in the direction of motion of a block of mass 9 Kg, with the mass being pulled across the floor against a frictional force of .6 Newtons. Assume that the block moved the distance 'y' in this process.
- What is the net force on the object?
- How much work does the net force do on the object?
- How much work does the applied force do on the object?
- What is the work done by the frictional force on the object?
- If the object had initial velocity 6 m/s, and if the force was applied for 3 seconds, then what is its acceleration and by how much did the velocity of the object therefore increase?
- What was its change in kinetic energy?
- How is this change related to the work done by the applied force and the frictional force?
- How is this change related to the work done by the net force?