Number 18 wo-903J12. A rope is used to pull a metal box 15.0 meters across the floor. The rope is held at an angle of 46.0° withthe floor and a force of 628 newtons. How much work does the force (tension) on the rope do?13. Which requires more work, carrying a 420-N knapsack up a 200 meter high hill or carrying a 210-Nknapsack up a 400 meter high hill? Why?14. Lee pushed horizontally with a 80-N force on a 20-kg mass 10 meters across a floor. Calculate toamount of work Lee did.15. The third floor of a house is 8.0 meters above street level, How much work is needed to move a 150-kilogram refrigerator to the third floor?16. Stan does 176 J of work lifting himself 0.300 m. What is Stan's mass?17. A crane lifts a 2.25 x 103-N bucket containing 1.15 m³ of soil to a height of 7.50 meters. Calculate thework the crane performs.18. Mike pulls a sled across level snow with a force of 225-N along a rope that is 35.0° above the horizontal.If the sled moved a distance of 65.3 meters, how work did Mike do?19. Karen has a mass of 57.0 kilograms and she rides up an escalator at Woodly Park Station of theWashington D.C. Metro. Karen rode a distance of 65.0 m, the longest escalator in the free world. Howmuch work did the escalator do on Karen if it has an inclination of 30.0°?20. An 845-N sled is pulled a distance of 185 meters. The task requires 1.20 x 104 J of work and is done bypulling on a rope with a force of 125-N. At what angle is the rope held?21. Chris carried a carton of milk, weight 10-N, along a level hall to the kitchen, a distance of 3.50 meters.How much work did Chris do?22. A 4200-N piano is to be slid up a 3.5-m frictionless plank that makes an angle of 30.0° with thehorizontal. Calculate the work done in sliding the piano up the plank?

Name: Number 18 wo-903J12. A rope is used to pull a metal box 15.0 meters ac
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: Number 18 wo-903J12. A rope is used to pull a metal box 15.0 meters across the floor. The rope is held at an angle of 46.0° withthe floor and a force of 628 newtons. How much work does the force (tension) on the rope do?13. Which requires more work,