Problema Solution
Bobby drops a coin into a wishing well. If the water is 42 feet from the top of the well, about how long would it take until the coin hits the water? Round to the nearest hundredth.
Answer provided by our tutors
using h = (1/2)gt2
h = 42 feet = 42×1.5/5 = 12.6 m
12.6 = (1/2)*9.8*t2
t2 = 12.6*2/9.8 = 2.5714
t = 1.6sec