- #1

renn12

- 2

- 0

## Homework Statement

Because the drag on objects moving through air increases as the square

of the velocity, the acceleration of a bicyclist coasting down a slight hill

is (v) = a - cv where a and c are constant. Determine the velocity of

the bicyclist as a function of distance if the velocity is zero when x=0.

Also determine the maximum velocity that the cyclist attains.

## Homework Equations

dx/dt = v

dv/dt = a-cv

## The Attempt at a Solution

x = -v/c - (a/c^2)*ln(a-cv)/a

v = (a - ae^-ct)/c

t = -(cx + v)/a = -(1/c)*ln(a-cv)/a

Last edited: