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3 years ago

If a rock has a speed of 12 m/s as it hits the ground, from what height did it

Physics

1 answer:

grin007 [14]3 years ago

6 0

Answer:

To find the height the following formula should be used:

v 2 = u 2 + 2aH

Explanation:

Assuming this occurs on earth, a= 9.8 ms -2

-2 2

12=0+2 x9.8 x H

144

_______ =H

2 x 9.8

H= 7.35m

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3 years ago

A U.S. Department of Energy report estimates that over 100 billion kWh/year can be saved in the United States by various energy-

I am Lyosha [343]

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