1- A ski tow operates on a slope of angle 14.9 of length 340 m . The rope moves
ID: 1537420 • Letter: 1
Question
1- A ski tow operates on a slope of angle 14.9 of length 340 m . The rope moves at a speed of 13.0 km/h and provides power for 48 riders at one time, with an average mass per rider of 75.0 kg . Estimate the power required to operate the tow.
2- A force in the +x-direction with magnitudeF(x)=18.0N(0.530N/m)x is applied to a 5.00 kg box that is sitting on the horizontal, frictionless surface of a frozen lake. F(x) is the only horizontal force on the box. If the box is initially at rest at x=0, what is its speed after it has traveled 14.0 m ?
Explanation / Answer
Total mass = 48 * 75= 3600kg Force on rope = 3600kg *9.8 * sin(14.9) = 9070.488N Power = force * speed = 9070.48N *13m/s = 117916.24 watts
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