Joseph has a projected lifetime of 71 years, just like all other humans. We tie
ID: 1409993 • Letter: J
Question
Joseph has a projected lifetime of 71 years, just like all other humans. We tie Joseph to a mobile trolley that moves to the right at 0.95c. A bullet zips past Joseph, which travels to the left at 0.8c. If we stand in a stationary lab and watch Joseph speeding around at his high speed, how many generators of us bystanders should we expect to grow and die until the day that joseph himself finally dies of old age? According to us, sitting in the lab, how far will joseph travel before he dies? How fast is the bullet moving relative to joseph if we use standard newtonian mechanics to do the calculation? How fat is the bullet actually moving relative to joseph? Is it possible for joseph to travel into the future? Is it possible for him to travel into the past?Explanation / Answer
a) t = to/sqroot(1 - (v/c)^2) = 227.381 yearas
number of generations = 3.20
b) lo = l*sqroot(1 - (v/c)^2)
and l = 71*v
so lo = 199256328395802415.477 m
c) Acc to joeseph, l = 63813 m
d) Using standard newtonian mechanics
speed of bullet = sqroot(0.95^2 + 0.8^2)c = 1.241 c
e) Relative to joeseph, speed = 0.8c ( perpendiculart to joeseph)
f) No
g) No
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.