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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
| Question | |
C | 13 |
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Question A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 4.0 cm. If a timer is started when its displacement is a maximum (hence x = 4 cm when t = 0), what is the speed of the mass when t = 3 s? | |
Answer zero | |
Notes
| User | Added | Note | e | d |
|---|---|---|---|---|
| KillGorack | 2023-07-15 20:03:28 | In summary, for a mass on a spring vibrating in simple harmonic motion with a frequency of 4.0 Hz and an amplitude of 4.0 cm, the following points can be noted: The mass completes one cycle in 1/4 seconds (period T = 1/4 sec) due to a frequency of 4 Hz. At multiples of 1/8 seconds (1/4 divided by 2), which includes t = 3 seconds, the mass reaches its maximum displacement (crest) or minimum displacement (trough) and changes direction. At these instances when the direction changes, the speed of the mass momentarily becomes 0. Therefore, when t = 3 seconds, the speed of the mass is 0 m/s. |
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