Suppose Spider-Man throws a web that is 1.00 m long with a velocity of 0.8c ($\gamma$ = 5/3) with respect to the Earth. What will be the length of web as observed by J. Jonah Jameson standing on the Earth?
A) 1.67 m
B) 1.33 m
C) 1.00 m
D) 0.80 m
E) 0.60 m

Question

Quizplus · Accepted Answer

The length contraction formula is $ L = L_0/\gamma $. Given $ L_0 = 1.00 $ m and $ \gamma = 5/3 $, the contracted length $ L = 1.00 \times 3/5 = 0.60 $ m.

Suppose Spider-Man Throws a Web That Is 1 γ\gammaγ = 5/3) with Respect to the Earth

Suppose Spider-Man Throws a Web That Is 1 $\gamma$ = 5/3) with Respect to the Earth