Question

a wave pulse is created in slinky it takes 1.2 seconds to travel the length of the slinky. if the slinky is 8 metrs long 1 wavelength, what is the speed of the wave?

Answer 1

Speed of the wave=6.67m/s

Step-by-step explanation:

Wave speed is the distance a wave travelled in meters over a period of time.

Speed of wave is given by:

V= wavelength/T

Wavelength =8m

T=1.2seconds

V=8meters/1.2seconds

V= 6.67m/s

The speed of the wave = 6.67m/s

Answer 2

The speed of the wave = 6.64 m/s.

Step-by-step explanation:

Wave: A wave is a disturbance which travels through a medium and transfer energy from one point to another without causing any permanent displacement of the medium itself.

The velocity of a wave (v) = λf...................... Equation 1

Where λ = wave length of the wave, f = frequency of the wave.

Given: λ = 8 m, and

f = 1/t where t = period.

t = 1.2 s

f = 1/1.2 = 0.83 hertz

Substituting these values into equation 1

v = 8 × 0.83

v = 6.64 m/s.

Therefore the speed of the wave = 6.64 m/s.