# mathematics

posted by
**Julia** on
.

A car braked with a constant deceleration of 45ft/s^2 producing skid marks measuring 55 ft before coming to a stop. How fast was the car traveling when the brakes were first applied? Please round the answer to the nearest hundredth.

Vo= ft/s

Vintial^2 - Vfinal^2= -2*acceleration*distance

Vfinal is zero. deacceleration is negative acceleration in the problem statement

thanks a bunch