Kinetic Friction of jet powered skiis

[queenyv2005]

Homework Statement

Joe, whose mass is 80kg, takes off across level snow in his jet powered skiis. The skiis have a thrust of 186N and a coefficient of kinetic friction on snow of 0.1. Unfortunately, the skiis run out of fuel after only 8 s. What is Joe's top speed? How far has Joe traveled when he finally coasts to a stop?

Homework Equations

The Attempt at a Solution

 

[Astronuc]

Please show some work.

Joe's mass (80 kg) is subjected to a force 186 N, but experiences a retarding (friction) force. The coefficient of friction is 0.1.

So determine the acceleration, from which speed can be determined at the end of 8 s.

Then with that speed, Joe decelerates with friction, so determine how far based on the maximum speed (magnitude of velocity) through the distance where he stops.

Refer to this - http://hyperphysics.phy-astr.gsu.edu/hbase/mot.html

 

[queenyv2005]

I got his top speed to be 10.76 m/s by using the frictional force in the equation. I just don't know which equation to use from there.