Number 21 b. The same passenger carries the same suitcase back down the same stairs. How much work does11. An airplane passenger carries a 215 newton suitcase up stairs, a displacement of 4.20 meters verticallyand 4.60 meters horizontally.How much work does the passenger do?215NX 4.70mThe same passenger carries the same suitcase back down thethe passenger do now? z5 Nx4.20Y703 ]CO ame stairs. How much work doesCo 180 =-903.J12. A rope is used to pull a metal box 15.0 meters across the floor The mmna is held at an angle of 46.0° withthe floor and a force of 628 newtons. How much work does the forse tension) on the rope do?--D= 15 m678 NX 15. om X Cos C460)= 6540J13. 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? 7ey700the bet done sonwork sirce wovkis diveetig propotroral210x ZoO84,000Ndz=400 Fz =210N14. Lee pushed horizontally with a 80-N force on a 20-kg mass 10 meters across a floor. Calculate toamount of work Lee did.E =80Nd = lomV= O 00 Nm15. 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?156メ7.81メ811772J16. Stan does 176 J of work lifting himself 0.300 m. What is Stan's mass?m=150 Kg.W= 176 J76N.M- FE=586.666tan's586. 6669.8m/s?m=59.8639 Kg·3m17. 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?E= Z25ND=65.3 mレ=7o37.157725 x 65.3 COS35.Z25 x65.3 x0.81919. 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 21 b. The same passenger carries the same suitcase back down th
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Description: Number 21 b. The same passenger carries the same suitcase back down the same stairs. How much work does11. An airplane passenger carries a 215 newton suitcase up stairs, a displacement of 4.20 meters verticallyand 4.60 meters horizontally.How much wo

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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?