A child throws a penny straight down into a wishing well. The penny's initial speed is 2 m/s. If the penny takes 3 seconds to hit the water, how deep is the well?
A. 20 m down
B. 46 m down
C. 50 m down
D. 94 m down

all i really want to know is the formula :( i dont know where to find acceleration here

Question

A child throws a penny straight down into a wishing well. The penny's initial speed is 2 m/s. If the penny takes 3 seconds to hit the water, how deep is the well?
	A.	20 m down
	B.	46 m down
	C.	50 m down
	D.	94 m down

all i really want to know is the formula :( i dont know where to find acceleration here

anonymous · Answer

so far i've gotten the answers 63 m down and 57 m down but neither of those are correct :/