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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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.