Question

Two rockets of rest length L approach each other with equal speeds of 0.4c. How

long would one rocket appear to the other?​

Answer 1

Answer:

the rocket would appear less then the length L. it will be because the rockets are moving at very high velocity called relativistic velocities , under such condition a phenomenon occurs called length contraction , this comes from Einstein's special theory of relativity..

the exact answer will be 0.72L .. that is one rocket will see the length of the other rocket 0.72 times of actual length.. If u need the detail calculations feel free to ask for...