Imagine Punch lives on the Earth at rest. Judy is traveling past the earth with a speed of 0.600 c. If a rocket moving in the same direction passes Judy, Punch sees the speed of the rocket to be 0.930 c. What is the speed of the rocket seen by Judy in terms of the speed of the light?

Respuesta :

Answer:

The speed of the rocket is 0.75c.

Explanation:

Given that,

Speed of earth v= 0.600 c

Speed of rocket u= 0.930 c

We need to calculate the speed of the rocket

Using the formula for relativistic velocity addition

[tex]u=\dfrac{v+u'}{1+\dfrac{vu'}{c^2}}[/tex]

[tex]u'=\dfrac{u-v}{1-\dfrac{vu}{c^2}}[/tex]

Put the value into the formula

[tex]u'=\dfrac{0.930c-0.600c}{1-\dfrac{0.930\times0.600c}{c^2}}[/tex]

[tex]u'=c(\dfrac{0.930-0.600}{1-0.930\times0.600})[/tex]

[tex]u'=0.75c[/tex]

Hence, The speed of the rocket is 0.75c.