Question 19.2 Q 19.2: What is the mass of a 70kg man in a space rocket traveling at 0.8c from us as measured from Earth? Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email Share on WhatsApp (Opens in new window) WhatsApp Related