Question

What is the Kinetic Energy and Potential Energy of a projectile at half of its maximum height?​

Answer 1

The vertical velocity of a projectile is zero at its maximum height, so vertically , the projectile will have no kinetic energy. This is because all the energy will have become potential energy at that point.

Answer 2

u is initial velocity. If m is mass of the projectile, it's kinetic energy at the maximum height will be K=(1/2)mu^2cos^2( theta). If you put (theta)=pi/2, it becomes the case of vertical projection.

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