Question: 1- How much work does a supermarket checkout attendant do on a can of soup he pushes 0.900 m horizontally with a force of 5.40

1- How much work does a supermarket checkout attendant do on a can of soup he pushes 0.900 m horizontally with a force of 5.40 N? Express your answer in joules and kilocalories. (For each answer, enter a number.)

A) work in joules J

B) work in kilocalories kcal

2- Using energy considerations, calculate the average force (in N) a 68.0 kg sprinter exerts backward on the track to accelerate from 2.00 to 6.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him. (Enter a number.) N

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