A 10.0kgkg stone slides down a snow-covered hill (the figure (Figure 1) ), leavi
ID: 1283049 • Letter: A
Question
A 10.0kgkg stone slides down a snow-covered hill (the figure (Figure 1) ), leaving point AA with a speed of 10.0m/sm/s . There is no friction on the hill between points AA and BB, but there is friction on the level ground at the bottom of the hill, between BB and the wall. After entering the rough horizontal region, the stone travels 100 m{ m m} and then runs into a very long, light spring with force constant 2.40N/mN/m . The coefficients of kinetic and static friction between the stone and the horizontal ground are 0.20 and 0.80, respectively.
Explanation / Answer
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we need height of AA then we can solve how much spring compressed by energy conservation
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