Question

Your kid brother gets a noise emitting toy for Christmas. This toy emits sound at a constant frequency. He attaches the toy to a rope and starts to swing it back and forth. He is facing you. You, seated on the sofa and very annoyed, measure the frequency of the sound as oscillating between 600.0 Hz and 617.75 Hz. Every 2.00 seconds, you hear the sound at the higher frequency. The speed of sound in air is 343 m/s.

(a) What is the toy’s maximum speed? Where does it have this speed?

(b) What is the length of the rope that the toy is attached to?

(c) What is the maximum height the toy reaches?

(d) Far in the future, a young Martian plays with a similar toy on a terraformed Mars. How many seconds are there between the high frequency sounds?

Answer 1

The answers to the question are