Aman strikes one end of a thin rod with a hammer. the speed of sound in the rod is 15 times the speed of sound in air. a woman, at the other end with her ear close to the rod, hears the sound of the blow twice with a 0.12 s interval between; one sound comes through the rod and the other comes through the air alongside the rod. if the speed of sound in air is 343 m/s, what is the length of the rod?

44.1 m

Explanation:

Given:

Assumptions:

We know that the distance traveled by the sound in a particular medium is equal to the product of the speed of sound in that medium and the time taken.

For traveling sound through the rod, we have

..........eqn(1)

For traveling sound through the air to the women ear for traveling the same distance, we have

Hence, the length of the rod is 44.1 m.

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