Question

5 select the correct answer. if a stone dropped into a well reaches the water’s surface after 3.0 seconds, how far did the stone drop before hitting the water? a. 1.4 meters b. 44 meters c. 49 meters d. 54.2 meters

Explanation:

Answer:

B. 44 meters

(Note: The formula for free - fall distance is \(d=\frac{1}{2}gt^{2}\), where \(g = 9.8\ m/s^{2}\) and \(t = 3.0\ s\). Then \(d=\frac{1}{2}\times9.8\times(3.0)^{2}=44.1\approx44\) meters.)