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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

Question

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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Physics
3 years
2021-08-11T13:49:03+00:00
2021-08-11T13:49:03+00:00 1 Answers
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## Answers ( )

Answer:a

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

=>

=>

=>