- #1

Northbysouth

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## Homework Statement

A retarding force is applied to a body moving in a straight line so that, during an interval of its motion, its speed v decreases with increased position s according to the relation v

^{2}=k/s, where k is a constant. If the body has a forward speed of 1.8 in/sec and its position coordinate is 9.2 in at time t=0, determine the speed v at t=4.0 sec.

## Homework Equations

v = ds/dt

## The Attempt at a Solution

I'm honestly not sure how to start this question. Suggestions would be appreciated.