A ball is thrown vertically upward from the ground with a speed of

PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A 0.50 kg0.50\,\text{kg} ball is thrown vertically upward from the ground with a speed of 10 m/s10\,\text{m/s}. Take g=9.8 m/s2g = 9.8\,\text{m/s}^2 and ignore air resistance. (a) Calculate the total mechanical energy of the ball at the point of projection. (b) Determine its speed when it reaches a height of 3.0 m3.0\,\text{m} above the ground.

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