Question

5.
The equation of a travelling wave is given by
(Vparticle) max. is
wave
y = 10cos(1200t - 3x) metre, the-
(1) 30
(2) 20
(3) 15
(4) 10

Answer 1

Answer:

v = 30 m/s

Explanation:

The equation of a travelling wave is given by :

$y=10\ cos(1200t-3x)$.............(1)

The velocity of a particle is given by :

$v=\dfrac{dy}{dt}$

The general equation of a travelling wave is given by :

$y=A\ cos(\omega t-kx)$.............(2)

The relation between the particle velocity and the group velocity is given by :

$v_p=v_w(\dfrac{dy}{dx})$  

$v_p$ is the particle's velocity

$v_w$ is the wave's velocity

$v_p=v_w(30\ sin(1200t-3x))$  

So, the maximum velocity of the particle is 30 m/s. Hence, this is the required solution.

Answer 2

Answer:

option 1....explanation in the picture.. if u find it helpful pls mark me as brainliest ..... tq