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  • 06-02-2015
  • Physics
Answered

A 200 g model rocket is observed to rise 100 m above the ground after launch. What must have been the launch speed of the rocket at the ground?

Verified Answer :

Anonymous Anonymous
  • 06-02-2015

Conservation of Energy

\(Eki + Epi = Ekf + Epf\\ \frac{1}{2} mv^2 + 0 = 0 + mgh\\ v= \sqrt{ 2gh} =\sqrt{ 2(9.8)(100)}\\ v=88.5 m/s\)

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