10 Questions
| Total Attempts: 133

Questions and Answers

- 1.5,500 J of work is done to move a rock 25 m. How much force was applied?
- 2.You and 3 friends apply a combined force of 489.5 N to push a piano. The amount of work done is 1762.2 J. What displacement did the piano move?
- 3.Calculate the amount of work done when moving a 567 N crate a distance of 20 meters.
- 4.A fallen tree branch with a weight of 154 N is lifted 2.75 meters. How much work is done?
- 5.If it took a bulldozer 567.6 joules of work to push a mound of dirt 30.5 meters, how much force did the bulldozer have to apply?
- 6.A front end loader needed to apply 137 newtons of force to lift a rock. A total of 223 joules of work was done. How far was the rock lifted?
- 7.A young boy applied a force of 2,550 newtons on his St. Bernard dog who is sitting on the boy's tennis shoes. He was unable to move the dog. How much work did he do trying to push the dog?
- 8.If it takes 68 joules of work to push a desk chair 22 m across a floor, what force would be needed?
- 9.If a long distance runner with a weight of 596.82 newtons does 35,674.7 joules of work during a portion of a race, what displacement will she cover during that portion?
- 10.Children are sled riding on a hill. One little girl pulls her sled back up the hill and does 379.5 joules of work while pulling it back up the 17.3 meter hill. What amount of force did she exert on the sled?

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