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Asked by Sujata

If a particle is projected at an angle of 30° to the horizontal with kinetic energy E then its kinetic energy at the topmost point would be?
9 years ago

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Answered by Scott
the horizontal velocity is the total velocity multiplied by cos(30º)

at the topmost point, there is no vertical velocity
... so the K.E. is ... E cos²(30º)
9 years ago

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