To determine the height of a bridge above the water,a person drops a stone and measures the time it takes for it to hit the water.If the time is 2.3 s,what is the height of the bridge? Neglect air resistance.
A)10 m
B)14 m
C)26 m
D)32 m
E)52 m

Question

Quizplus · Accepted Answer

The height can be calculated using the formula $ h = \frac{1}{2} g t^2 $, where $ g \approx 9.8 \, \text{m/s}^2 $ is the acceleration due to gravity and $ t = 2.3 \, \text{s} $. Plugging in the values, $ h = \frac{1}{2} \times 9.8 \times (2.3)^2 \approx 25.9 \, \text{m} $, which rounds to 26 m.

To Determine the Height of a Bridge Above the Water,a