SOLUTION: A stone is thrown straight upward and it rises to a maximum height of 20 m.
Determine with what speed was it thrown?
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Determine with what speed was it thrown?
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Question 1161026: A stone is thrown straight upward and it rises to a maximum height of 20 m.
Determine with what speed was it thrown? Answer by ikleyn(53751) (Show Source):
In Physics, they write the Energy conservation equation
= mgh (1)
and then obtain from this formula (after canceling the mass "m" in both sides)
v = . (2)
According to formula (2)
v = = = 19.81 m/s.
You can round it to 20 m/s.
