Monday
July 28, 2014

Homework Help: physics

Posted by Jean on Wednesday, March 7, 2007 at 9:00pm.

A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of 2.00 m/s. The coefficient of kinetic friction between sled and ice is 0.100. Use energy considerations to find the distance the sled moves before it stops.

find the initial KE. set that equal to forcefriction*distance

1/2 mv^2=mg*.1*distance

solve for distance.

I tried that, but the problem doesn't give me a mass....

mass does not matter, it divides out. Put 1 for the mass.

oh! nevermind. I was looking at the wrong answer in the book, so I kept thinking i got the wrong answer. haha thank you!

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