Physics

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A 1.1 kg book is lying on a 0.77 m -high table. You pick it up and place it on a bookshelf 2.3 m above the floor.
1. How much work does gravity do on the book?
2. How much work does your hand do on the book?

How do you find work?

• Physics -

work done is equal to the change of graviational potential energy here: mgh

In general, work is force*distance*cosineAnglebetween force and distance.

• Physics -

2.6

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