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Question

A body is projected from the ground with the velocity of 10 ms1 such that it makes an angle of 30o\displaystyle { 30 }^{ o }30o with the horizontal. What is the horizontal velocity at the maximum height?

A
62ms1
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B
92ms1
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C
35ms1
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D
53ms1
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Solution

The correct option is D - 53ms1

As their is no acceleration in horizontal direction the horizontal velocity will be constant throughout the journey

Initial velocity= 10×cos300=5310 \times cos 30^0=5\sqrt{3}10×cos300=53

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