Q.

Which of the following is the altitude-time graph for a projectile thrown horizontally from the top of the tower ?

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a

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b

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c

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d

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answer is D.

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Detailed Solution

Let H be the height of the tower. Then 

h=H12gt2

This expression shows that h decreases with time. Further the graph will be a parabola. This is shown in option 4 of the question.

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Which of the following is the altitude-time graph for a projectile thrown horizontally from the top of the tower ?