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tino4ka555 [31]

3 years ago

12

Physics question, any help is appreciated :)

2 answers:

Gekata [30.6K]3 years ago

8 0

Runner 2 sees Runner 1 passing him with a velocity of 17 m/s west.

Rainbow [258]3 years ago

4 0

The velocity of 17 m/s west is the answer.

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In an electric shaver, the blade moves back and forth over a distance of 2.0 mm in simple harmonic motion, with frequency 124 Hz

bagirrra123 [75]

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(a) A = 1 mm

(b) $V_{max}=0.77872 m/s$

(c) $a_{max}=606.4 m/s^{2}/tex]Explanation:Distance moved back and forth = 2 mm Frequency, f = 124 HzSo, amplitude is the half of the distance traveled back and forth. (a) So, amplitude, A = 1 mm(b) Angular frequency, ω = 2 π f = 2 x 3.14 x 124 = 778.72 rad/s The formula for the maximum speed is given by [tex]V_{max}=\omega \times A$

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$V_{max}=0.77872 m/s$

(c) The formula for the maximum acceleration is given by

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$a_{max}=778.72 ^{2}\times 0.001$

[tex]a_{max}=606.4 m/s^{2}/tex]

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