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Introduction to Projectile Motion

A projectile ...

Question

A projectile is thrown with a velocity of $10 m s^{- 1}$ at an angle of $60^{o}$ with horizontal .velocity at the highest point is?

5 m s^{- 1}

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6 m s^{- 1}

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8 m s^{- 1}

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3 m s^{- 1}

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Solution

The correct option is A $5 m s^{- 1}$
Given,
$u = 10 m / s$
$θ = 60^{0}$
Velocity at the highest point is
$v = u c o s θ$
$v = 10 \times c o s 60^{0}$
$v = 5 m / s$
The correct option is A.

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