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Projectile Motion

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A spear is thrown upward from a cliff 48 m above the ground. Given an initial speed of 24 m/s at an angle of 30º to the horizontal,
a. how long is the spear in flight?
b. what is the magnitude and direction of the spear's velocity just before it hits the ground?

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This posting contains the solution to the given problems. Projectile motion for a spear in flight is examined.

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A spear is thrown upward from a cliff 48 m above the ground. Given an initial speed of 24 m/s at an angle of 30º to the horizontal,
a. how long is the spear in flight? ...

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