Question

A space ship going away from the earth at half the speed of light fires from its nose a rocket which travels with a speed of 0.4c with reference to the ship. The speed of the rocket with reference to earth is -
(A) zero
(B) 0.1c
(C) 0.9 c
(D)c​

Answer 1

Answer:

Bro it's not possible.

Theory of relativity doesn't allow the body to move at such a fast speed. If it so then the rocket half mass will become energy!!

Answer 2

Answer:

0.5

Explanation: