Why more effort is required in pushing a load than carrying through a trolley ?
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Explanation:
It is simple because sliding friction is greater than rolling friction.
* When you move a load by pushing it the irregularities between the objects get more time to interlock than in when you are rolling a load through a trolley.
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Answer:
Because trolley consist of a wheel
Explanation:
Wheel rotates easily and less efforts are needed
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