Question

Fred stands at the edge of the Grand Canyon and yells down to the bottom. If Velma, (standing at the bottom), hears Fred 2.6 seconds later, how deep is the canyon where she is standing?(Sound travels at 340 m/s)

a. 0.008 m
b. 884 m
c. 130.77 m
d. 0.77 m

Answer 1

The depth of the canyon where Velma is standing is 884 m, calculated using the speed of sound and the time it took for her to hear Fred's yell from the canyon's edge.

Step-by-step explanation:

When Fred yells down into the canyon and Velma hears the sound 2.6 seconds later, we can calculate the depth of the canyon by using the speed of sound which is given as 340 m/s. The depth of the canyon (distance sound traveled) is equal to the speed of sound multiplied by the time it took for Velma to hear Fred's yell. Therefore, the calculation would be:

Depth = Speed of sound × Time = 340 m/s × 2.6 s = 884 m

So the correct answer is (b) 884 m, which represents the depth of the canyon where Velma is standing based on the time it took for sound to travel from Fred to Velma.