Question

If a rod is to appear shrunk by half along its direction of motion, at what speed should it travel?​

Answer 1

Answer:

rod distance by weight of rod

Answer 2

Answer:

L = L0/γ = L0/2 γ = 2 → β = (γ2 − 1)1/2/γ = (22 − 1)1/2/2 = 0.866 v = βc = 0.866 × 3 × 108 = 2.448 × 108ms−1 Read more on Sarthaks.com - https://www.sarthaks.com/448399/rod-is-to-appear-shrunk-by-half-along-its-direction-of-motion-at-what-speed-should-it-travel