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Introduction to Projectile Motion

The time of f...

Question

The time of flight of a projectile is 10 seconds. If its velocity at the maximum height is 20 $m s^{- 1}$ , its horizontal range is

A

200m

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B

300m

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C

980m

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D

196m

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Solution

The correct option is A 200m
We know,velocity at the maximum height $= v cos θ = 20 m / s$
Range = $v cos θ \times t = 20 \times 10 = 200 m$
Therefore, A is correct option.

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