Understanding Work and Energy

What is the work done by the tension force on the trashcan if the tension is 50 newtons and the displacement is 10 meters?

• 300 joules

• 500 joules

• 200 joules

• 400 joules

How much work is done by the force of friction if it acts opposite to the displacement?

• 500 joules

• 0 joules

• -300 joules

• 300 joules

What is the net work done on the trashcan after it slides 10 meters?

• 300 joules

• 100 joules

• 400 joules

• 200 joules

According to the work-energy principle, what is the final speed of the trashcan if it started from rest?

• 5 meters per second

• 10 meters per second

• 15 meters per second

• 20 meters per second

When lifting the trashcan with a constant velocity, what is the net work done?

• -78.4 joules

• 78.4 joules

• 0 joules

• 39.2 joules