Physics- conservation and dissipation of energy Watch

tomas530
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A student pushes a trolley of weight 150N up a slope of length 20m. The slope is 1.2m high.
If the student pushed the trolley up the slope at constant speed, explain why all the work done by the student was not transferred to the gravitational potential energy store of the trolley. [3 marks]

(Its taken from the AQA GCSE Physics book by OXFORD)
Pls help
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Plantsarelife
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Did u get ur answer? Because I have the same question
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tomas530
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(Original post by Plantsarelife)
Did u get ur answer? Because I have the same question

Hi, yes, i figured out that some work done would convert to sound energy due to the wheels squeeling when they spin, to heat energy due to the wheels causing friction.

Hope this helps, Tomas
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