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18. A brother carries his little sister, who weighs 24kg, across a field 20 meters. How much work did he do?

18. A brother carries his little sister, who weighs 24kg, across a field 20 meters. How much work did he do?
asked 160k views
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18. A brother carries his little sister, who weighs 24kg, across a field 20 meters. How

much work did he do?

asked
User BluePsyduck
by
8.3k points

1 Answer

3 votes

Answer:

4800 joules

4.8 kilojoules

Explanation:


Work done = Force * distance\\Workdone = (mass*acceleration)*distance\\Note : force = (mass*acceleration) , Acceleration- due- to -gravity =10m/s^2\\W.D = 24 * 10*20\\W.D = 4800 joules\\W.D =4.8Kilo joules

answered
User Ramakanth Putta
by
8.1k points
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