Question: A 2 . 0 - k g mass is projected vertically upward from ground level with an initial speed of 3 0 m s .

2.0 - k g

mass is projected vertically upward from ground level with an initial speed of

30 \frac{m}{s} .

The mass rises to a maximum height of

35

m above ground level. What is the change in mechanical energy of the mass caused by air resistance between the point of projection and the point of maximum height? Answer:

- 0.21

.

A 2 . 0 - k g mass is projected vertically upward

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