K Santana Rodriguez - Concept 4 X E Santana Rodriguez - Concept 4-F * + com Classes M Gmail Auto Upkeep Acade... n Student Home | No.. Mr. B's ELA 1 Lit &... Courses - Auto Upk... DeltaMath Classwork for COA Physical . > Santana Rodriguez - Concept 4-Practice.pdf Roboto # 1 5pt : B I US AA D X XBEEBE Practice: Work and Power Calculations Answer the following questions. Make sure to show all work to receive credit. You may need a separate sheet of paper. 1. It took 500 N of force to push a car 4 meters. How much work was done? 2000J 2. A force of 15 Nis used to push a box along the floor a distance of 3 meters. Find the amount of work done. work done= 15N X 3m=45JJ A force of 100 N was needed to lift a rock. A total of 150 J of work was done. How far was the rock lifted ? 4. Max exerted a force of 9,000 N on a stalled car but was unable to move it. How much work did he do? 5. A 5 kg rock is lifted 2 m. Find the amount of work done. 6. How much power is used if a force of 35 Nis used to push a box a distance of 10 meters in 5 seconds? 7. If 270 watts of power is used in 42 seconds, how much work was done? 8. How long does it take to do 278 J of work with 17 W of power? 9. A pulley is used to lift a piano weighing 1,000 N. The piano is lifted 3 m in 60 s. How much power is used? O L