Question

a slinky spring stretches and come back in 5 seconds whose length is 5 M what is the velocity of the wave

Answer 1

The distance traveled by the disturbance during the time period is known as wavelength i-e, length of the wave. 
Wave velocity is defined as the distance traveled by the wave per second.
When the wave travels a distance 'λ' in time 'T' , its velocity is equal to
Velocity = Distance / Time
V = λ / T  ......... (1)
Now given that,
Time = T = 5 sec
Distance = λ = 5 m
Substitute these values in (1), we get:
V = 5/5
V = 1 m/sec
which is the required answer.
Hopefully it helps. Thanks.

Answer 2

Answer:- 1m/s

Explanation: Given, Time period = 5 s

Length of the wave = 5m

Velocity of the wave = ?

As we know that Velocity = frequency × Lambda

So, As Frequency =1/ Time period

So, F = 1/5 = 0.2 Hertz

Now,

Velocity of the wave = 0.2 Hertz × 5

= 1.0 or 1m/s

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Or

As we know that Speed = Distance/ Time

Therefore, 5m/5second = 1 m/s

Answered by Pribi❣️

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