Q1 of 101 Page 131

A heavy stone is thrown from a cliff of height h with a speed υ. The stone will hit the ground with maximum speed if it is thrown

As the stone falls under the influence of the gravitational force, which is a conservative force. The total energy of the stone remains the same at every point during its motion. Hence, we can say that the maximum speed at which the stone hits the ground doesn’t depend the initial direction of motion.

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