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Physics sled problem?
When your sled starts down from the top of a hill, it hits a frictionless ice slick that extends all the way down the hill. At the bottom, the ground is dry and level. The effective coefficient of friction between the sled runners and the ground is 0.62. If the hill is 50 m high, how far will your sled travel once it reaches the bottom?
1 Answer
- ?Lv 71 year agoFavorite Answer
The potential energy converts to kinetic energy, then that kinetic energy converts to work of friction. Therefore the potential energy converts to work
W = PE
Fd = mgh
d = mgh/F = mgh/μmg = h/μ = 50 / 0.62 = 80.845... ≈ 81 m
