1. The problem statement, all variables and given/known data A boy is sliding down a long icy hill on his sled. In order to decrease his mass and increase his velocity, he drops his heavy winter coat and heavy boots from (he sled while he is moving. Will his strategy work? 2. Relevant equations KE=1/2mv2 p=mv mgh 3. The attempt at a solution I thought that since he is decreasing his mass his velocity will go up. B/c in F=ma m and a are inversely related. I.e. if I drop mass a goes up which increases v?? Instead the answer (multiple choice) says that it won't work b/c his PE will go down. How does PE and KE allow for his velocity to go down? How does this relate to momentum. I get that a reduction in energy will reduce but it's not clear how it specifically elates to velocity. Thanks!