1.

A raindrop falling from a height h aboveground , attains a near terminal velocity when it has fallenthrough a height (3/4) h . Which fthe diagrams shownin figurecorrectly shows the changein kineticand potential energyofthe dropduring its fall up to the ground?

Answer»




Solution :When drop falls its velocity increases and KE also increases . After sometime velocity becomes constant called TERMINAL velocity ,hence KE alsobecomes constnt . PE DECREASES consistently as the drop is falling .
The fluctuation in PE and KE is REPRESENTED by


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