A 46.7-g golf ball is driven from the tee with an initial speed of 41.8 m/s and

Question

A 46.7-g golf ball is driven from the tee with an initial speed of 41.8 m/s and rises to a height of 31.5 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.39 m below its highest point?

A 46.7-g golf ball is driven from the tee with an initial speed of 41.8 m/s and rises to a height of 31.5 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.39 m below its highest point?

Explanation / Answer

Answer:  Vertical speed = square root (2 . 9.8 . 31.5) = 24.847 m/s

41.8 sin

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