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IrinaK [193]
3 years ago
6

A bus travels North for 10 miles then turns around and

Physics
1 answer:
Lesechka [4]3 years ago
4 0
The displacement of the bus is 6.25 miles.
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mr_godi [17]

Answer:

(a) The spring constant is 59.23 N/m

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Explanation:

Given;

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frequency, f = 2.5 Hz

amplitude of the oscillation, A = 4.5 cm = 0.045 m

The  angular speed is calculated as;

ω = 2πf

ω = 2 x π x 2.5

ω = 15.71 rad/s

(a) The spring constant is calculated as;

\omega = \sqrt{\frac{k}{m} } \\\\\omega ^2 = \frac{k}{m} \\\\k = m\omega ^2\\\\where;\\\\k \ is \ the \ spring \ constant\\\\k = (0.24) \times (15.71)^2\\\\k = 59.23 \ N/m

(b) The total energy involved in the motion;

E = ¹/₂kA²

E = (0.5) x (59.23) x (0.045)²

E = 0.06 J

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