a shell of mass 50kg at 60 degree to the horizontal with a speed 200 m/s . neglecting air resistance, the energy of the shell in joules at its highest point?

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- May 15th 2008, 06:09 AMpower0projectile + energy
a shell of mass 50kg at 60 degree to the horizontal with a speed 200 m/s . neglecting air resistance, the energy of the shell in joules at its highest point?

help me with this question! - May 15th 2008, 08:05 AMIsomorphism
By conservation of Energy, it should be the same as initial energy when you threw the projectile.

So the answer is $\displaystyle \frac12 m v^2 = \frac12. 50.(200)^2 = 10^6 J = 1MJ$

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help me with this question!

- May 15th 2008, 08:12 AMtopsquark