4 and 5 1. Calculate the distance a laborer can push a 20.0 kg cart, with a 62N force at 30.0° horizontalangle, if he can do 2920 J of work?2. calculate the work needed to lift a 20. kg sack of rice vertically at 6.5 m?3. If a miniature engine does 520. J of work to cause a car in motion with a distance of 260, m,how much force does it exert?4. if Jane pushes John on his sled with a force of 300. N for 750. m. How much work is needed ifthe force of friction acting on the sled is (a) 200. N. (b) 300. N?5. A metal ball weighing 6kg which is moving at 4.0 m/s hits another ball of the same mass andsticks to it. The two is now moving at 2.0 m/s.(a) What is the KE of the 1" metal ball before it hits?(b) What is the KE of the 1 metal ball after it hits?(c) What is the KE of the 2nd ball after being hit?(d) How much energy does the metal ball lose in the collision?(e) How much kinetic energy does the putty ball gain in the collision?(f) What happened to the rest of the energy?FINAL ANSWER1.2.3.4.5. a)b)c)e)SOLUTION: (Use additional sheet if necessary, please staple or glue it)

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Description: 4 and 5 1. Calculate the distance a laborer can push a 20.0 kg cart, with a 62N force at 30.0° horizontalangle, if he can do 2920 J of work?2. calculate the work needed to lift a 20. kg sack of rice vertically at 6.5 m?3. If a miniature engine does 5

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4. if Jane pushes John on his sled with a force of 300. N for 750. m. How much work is needed if the force of friction acting on the sled is (a) 200. N, (b) 300. N?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 4P: a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the...

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