Question

if a=-1/x2 at t=0 v=2 X=1 X=2. find the final velocity.​

Answer 1

Answer:

Final velocity is 2 u itself gave it in the question

Explanation:

Answer 2

Answer:

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11th

Physics

Waves

Characteristics of a Progressive Wave

The displacement of a wave ...

PHYSICS

Asked on December 30, 2019 byLavisha Morye

The displacement of a wave disturbance propagating in the positive x-direction is given by y=1+x21 at t = 0 and y=1+(x−1)21 at t = 2s. Where, x and y are in metre. The shape of the wave disturbance does not change during the propagation. The velocity of the wave is 2xm/s. Find the value of x. 

A

1

B

2

C

3

D

5

MEDIUM

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ANSWER

y(x,0)=1+x21

y(x,2)=1+(x−1)21

If the speed of the pulse is v,

y(x,t)=y(x−vt,0)

y(x,2)=y(x−2v,0)

Therefore,

1+(x−1)21=1+(x−2v)21

Comparing LHS and RHS,

v=21m/s