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## Homework Statement

A ball of mass M is thrown vertically upward with an initial speed Vo. It experiences a force of air resistance given by F=-kv, where k is a positive constant. The positive direction for all vector quantities is upward. Express all algebraic answers in terms of M, k, and Vo, and fundamental constants.

a.) Does the magnitude of the acceleration of the ball increase, decrease, or remain the same

b.) Write, but do not solve, a differential equation for the instantaneous speed v of the ball in terms of time t as the ball moves upward

c.) Determine the terminal speed of the ball as it moves downward

d.) Does it take longer for the ball to rise to its maximum height or fall from its maximum height back to the height from which it was thrown?