Can someone please help me with the following question? It is a question from Co

Question

Can someone please help me with the following question? It is a question from Conceptual Physics (9th) by PaulHewitt A girl throws a slingshot pellet directly at a target that isfar enough away to take one-half second to reach. How farbelow the target does the pellet hit? How high above thetarget should she aim? Can someone please help me with the following question? It is a question from Conceptual Physics (9th) by PaulHewitt A girl throws a slingshot pellet directly at a target that isfar enough away to take one-half second to reach. How farbelow the target does the pellet hit? How high above thetarget should she aim?

Explanation / Answer

The pellet takes .5 seconds to reach the target. In these .5seconds, gravity is accelerating the pellet downward. Using thefree-fall formula d = .5gt^2, we have d = .5*9.8*.5^2 = 1.225 m. Sothe pellet falls 1.225 meters while it is in transit.
If she aims 1.225 meters above the target and again gives thepellet only horizontal velocity, the pellet will fall 1.225 metersin the .5 seconds it takes for the pellet to reach the target, andit will exactly hit the target.

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