You have been hired by a ski club to help them choose which toboggan to use for
ID: 1429425 • Letter: Y
Question
You have been hired by a ski club to help them choose which toboggan to use for rescue supplies in case a skier is stranded at the top of a hill. The parameters they provide you with are that a single person must be able to pull with a force of 60 N at an angle of 30º with the horizontal a toboggan loaded with supplies with a total maximum mass of 20 kg along a horizontal surface for 10.0 m before reaching the foot of a steady upward 30.0° incline. While pulling with the same force the single person must be able to at least have the toboggan move 10.0 m up along this slope before coming to rest. Ski suppliers have given you the optio
n between three types of toboggans each with a different coefficient of kinetic friction with snow: 0.100, 0.200, and 0.400. The higher coefficient of kinetic friction, the cheaper the toboggan is. Which one should you advise the ski club to choose?
Explanation / Answer
the one having 0.400 friction coefficient is advisable
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