A ball of relatively low density is thrown upwards. Because of air resistance the acceleration while traveling upwards is − 10.8 m/s 2 . On its trip downward the resistance is in the opposite direction, and the resulting acceleration is − 8.8 m/s 2 . When the ball reaches the level from which it was thrown, how does its speed compare to that with which it was thrown?

Question

A ball of relatively low density is thrown upwards. Because of air resistance the acceleration while traveling upwards is  − 10.8 m/s 2 . On its trip downward the resistance is in the opposite direction, and the resulting acceleration is  − 8.8 m/s 2 . When the ball reaches the level from which it was thrown, how does its speed compare to that with which it was thrown?

Answer

It is the same as the original speed upward.

Answer

It is greater than the original speed upward.

Answer

It is less than the original speed upward.

Answer

Without knowing the original speed, this problem cannot be solved.

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A ball of relatively low density is thrown upwards. Because of air resistance th...

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