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Intro to Work-Energy Theorem

Posljednje ažuriranje about 7 years ago

4 questions

1

Pitanje 1

1.

A crane lifts a 250 N ball 10 meters off the ground. How much work did the crane
do on the ball?

1

Pitanje 2

2.

A crane lifts a 250 N ball 10 meters off the ground. What was the ball's change in energy?

1

Pitanje 3

3.

A crane lowers a 200 N ball 10 meters. How much work did the crane do on the ball?

1

Pitanje 4

4.

A crane lowers a 200 N ball 10 meters. What was the ball's change in energy?