Delivering Rescue Supplies You are a member of an alpine rescue team and must pr

Question

Delivering Rescue Supplies You are a member of an alpine rescue team and must project a box of supplies, with mass m, up an incline of constant slope angle a so that it reaches a stranded skier who is a vertical distance the bottom of the incline. The incine is slippery, but there is some friction present, with kinetic friction coefficient Part A Use the work-energy theorem to ca the minimum speed t that you must give the box at the bottom of the incline will reach the skier. Express your answer in terms of some or all of the variables m,g. h, puk and a. 12gh(1 un cot a) Hints My Answers Give up Review Part incorrect; Try Again; 5 attempts remaining The correct answer does not depend on: tk. Continue

Explanation / Answer

mgh+mu mg cos alpha h sin alpha=0.5 mv^2

KE at bottom= PE at top + work by friction.

h sin alpha is the distance through which box travels

Mg cos alpha is the normal force

Friction depends on normal

On solving

v=sort(2gh(1+mu cot alpha))

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