073 WProblem 3Solve this problem from a previous group work, but with energy/work.When moving to a new apartment, you rent a truck and create a ramp with a 244 cmlong piece of plywood. The top of the ramp lies on the edge of the truck bed at a heightof 115 cm. You load your textbooks into a wooden box at the bottom of the ramp (thecoefficient of kinetic friction between the box and ramp isfriends give the box a quick push and it starts to slide up the ramp. Unfortunatelv, afterletting go, the box only travels 80 cm up the ramp before it starts coming back down!0.2). Then you and a fewACMEμvers244 cm1UScmBooks(A) What is thelost to friction when the box has a travelled distance 80 cm alongenergythe ramp (solve this symbolically with the box having a mass m)?NAME2

Question
Asked Oct 18, 2019
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How do you calculate energy lost to friction?

073 W
Problem 3
Solve this problem from a previous group work, but with energy/work.
When moving to a new apartment, you rent a truck and create a ramp with a 244 cm
long piece of plywood. The top of the ramp lies on the edge of the truck bed at a height
of 115 cm. You load your textbooks into a wooden box at the bottom of the ramp (the
coefficient of kinetic friction between the box and ramp is
friends give the box a quick push and it starts to slide up the ramp. Unfortunatelv, after
letting go, the box only travels 80 cm up the ramp before it starts coming back down!
0.2). Then you and a few
ACME
μvers
244 cm
1UScm
Books
(A) What is the
lost to friction when the box has a travelled distance 80 cm along
energy
the ramp (solve this symbolically with the box having a mass m)?
NAME
2
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073 W Problem 3 Solve this problem from a previous group work, but with energy/work. When moving to a new apartment, you rent a truck and create a ramp with a 244 cm long piece of plywood. The top of the ramp lies on the edge of the truck bed at a height of 115 cm. You load your textbooks into a wooden box at the bottom of the ramp (the coefficient of kinetic friction between the box and ramp is friends give the box a quick push and it starts to slide up the ramp. Unfortunatelv, after letting go, the box only travels 80 cm up the ramp before it starts coming back down! 0.2). Then you and a few ACME μvers 244 cm 1UScm Books (A) What is the lost to friction when the box has a travelled distance 80 cm along energy the ramp (solve this symbolically with the box having a mass m)? NAME 2

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Expert Answer

Step 1

Consider the free body diagram.

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wsino wlos& w-mg 244 Cm

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Step 2

From the right-angled triangle ABC, the angle θ can be calculated as,

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115 cm sin e 244 cm 115 cm 0=sin 244 cm 0 28.12°

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Step 3

Apply force equilibrium along the vertical direction of the ramp, ...

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Fma, m(0) та, N-wcos N mg cos

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Friction

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