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September 16, 2014

September 16, 2014

Posted by **Manny** on Sunday, October 14, 2007 at 11:05pm.

Do 100 J of work in 50 s and your power output is?

- I got 2, but not sure of the units.

A bow is drawn so that it has 40 J of potential energy. When fired, the arrow will ideally have a kinetic energy of ?

I dont understand this queston

A diver who weighs 500 N steps off a diving board that is 10 m above the water. The diver hits the water with kinetic energy of?

I dont understand this question

- Physics Word Problems -
**bobpursley**, Monday, October 15, 2007 at 6:05ama Joule/second is defined as a watt.

The second is conservation of energy. The arrow should have the same KE as the bow had PE.

The third is exactly the same, The diver had mgh of PE, he should have that KE at the bottom.

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