Saturday, March 10, 2012

If there were no air resistance, with what speed would drops hit the Earth if they fell from a cloud 1818 m?

If there were no air resistance, with what speed would drops hit the Earth if they fell from a cloud 1818 m surface? The acceleration of gravity is 10 m/s2.

Answer in units of m/s.If there were no air resistance, with what speed would drops hit the Earth if they fell from a cloud 1818 m?
v^2-u^2=2as

v^2-0=2x10x1818

v^2=36360

v=under root36360=190.68m/s
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