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Author Question: How to calculate the velocity of projectile when it hits the ground and its displacement? (Read 768 times)

Melanie

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on: Jun 23, 2013
Knowing:    A projectile is fired from the ground vertically upward with an initial velocity of 29 m/s and arrives at its max altitude in 3 seconds


coco

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Reply #1 on: Jun 23, 2013
In the absence of air friction, a projectile will always hit the ground at the same speed at which it was launched, providing the two points are the same elevation.

BTW, t = V/g = 29/9.81 = 2.956 sec (OK, so that's 3 sec to 1 sig fig...)


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Melanie

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Reply #2 on: Jun 24, 2013
Thanks :D


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