Question: A 2 . 0 - k g mass is projected from the edge of the top of a 2 0 - m tall building with

2.0 - k g

mass is projected from the edge of the top of a

20 - m

tall building with a velocity of some unknown angle above the horizontal. Disregard air resistance and assume the ground is What is the kinetic energy of the mass just before it strikes the ground? Answer:

0.97

.

A 2 . 0 - k g mass is projected from the edge of

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