Answer:
Mechanical advantage of the ramp = 
Efficiency of the ramp = 
= 
Explanation:
i) Mechanical advantage of the ramp =
ii) Efficiency of the ramp = =
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So the problem ask to calculate the magnitude acceleration of the skier skiing down a slope of 50 meters long in 5 seconds. So base on that fact, the acceleration would be equals to 4 meters/seconds^2. I hope you are satisfied with my answer and feel free to ask for more
transverse and longitudinal
Answer:
This question requires gravitational acceleration,t=（2h/g）^ 1/2,Level the initial speed is 15/t.
