Physics, 12.01.2021 05:20 shauntleaning

A 5 kg projectile is fired at an angle of 25o above the horizontal. Its initial velocity is 200 m/s and just before it hits the ground its velocity is 150 m/s. What is the change in the mechanical energy of the projectile?

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A 5 kg projectile is fired at an angle of 25o above the horizontal. Its initial velocity is 200 m/s...