﻿ A projectile is fired with ‘kinetic energy K at an angle θ with the horizontal. What will be the kinetic energy of projectile at the highest point? from Physics Motion in A Plane Class 11 Manipur Board

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Motion in A Plane

Physics Part I

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A projectile is fired with ‘kinetic energy K at an angle θ with the horizontal. What will be the kinetic energy of projectile at the highest point?

Let a projectile of mass m be projected with velocity u at an angle θ.

Kinetic energy of projection,

At the highest point, vertical component of velocity is zero and there is only horizontal component of velocity.

Horizontal component = u cos θ.

∴ Kinetic energy at the highest point is,

K.E =

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