1 a man pushes a lawn mower on a level lawn with a force of, Ask an Expert

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1 A man pushes a lawn mower on a level lawn with a force of 190 N. If 33% of the force is directed horizontally, how much work is done by the man in pushing the mower 5.7 m?

2 A student throws a 0.190-kg ball straight upwards to a height of 8.10 m. How much work did the student do?

3 A 76 kg student traveling in a car with a constant velocity has a kinetic energy of 1.1 multiply.gif 104 J. What is the speedometer reading of the car in km/h?

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