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A spring with spring constant 15 N/m hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 6.0 cm and released. If the ball makes 30 oscillations in 20 s, what are its (a) mass and (b) maximum speed?
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Part (A)
Part (B)
Explanation:
From the question we are told that
The spring constant is
The maximum extension of the spring is
The number of oscillation is
The time taken is
Generally the the angular speed of this oscillations is mathematically represented as
where T is the period which is mathematically represented as
substituting values
Thus
This angular speed can also be represented mathematically as
=>
substituting values
In SHM (simple harmonic motion )the equation for velocity is mathematically represented as
The velocity is maximum when
=>
=>
=>
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