ICSEX | PHYSICSMOST IMPORTANT QUESTIONSwww.topperlearning.com43.A coolie is pushing a box weighing 1500 N up an inclined plane 7.5 m long on to a platform 2.5 m above the ground.[3 M](i)Calculate the mechanical advantage of the inclined plane.(ii)Calculate the effort applied by the coolie.(iii)In actual practice, the coolie needs to apply more effort than what is calculated. Give one reason why you think the coolie needs to apply more effort

Asked by pest34 | 20th Dec, 2018, 12:01: PM

Expert Answer:

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Solution is attached. 
In actual practice cookie needs to provide more force because of friction.

Answered by Ankit K | 20th Dec, 2018, 10:28: PM