Question

1. A spaceship A (at rest in inertial frame A) of proper length L = 80.0m is moving in the +x direction at a speed v = 0.720 c as measured in the Earth frame. Another spaceship B (at rest in inertial frame B) is moving in the opposite direction (-x) with u$_x$ = -0.850 c as measured in the Earth frame. The two spaceships pass each other. a. What is the relative speed and speed parameter between spaceship A and B, u', $eta'$? b. In inertial frame A, how long does it take for the tip of spaceship B to move from the tip of spaceship A to the tail of spaceship A? c. In inertial frame B, how long does it take for the tip of spaceship B to move from the tip of spaceship A to the tail of spaceship A? d. In the Earth frame, how long does it take for the tip of spaceship B to move from the tip of spaceship A to the tail of spaceship A?

          1. A spaceship A (at rest in inertial frame A) of proper length L = 80.0m is moving in the
+x direction at a speed v = 0.720 c as measured in the Earth frame. Another spaceship
B (at rest in inertial frame B) is moving in the opposite direction (-x) with
u$_x$ = -0.850 c as measured in the Earth frame. The two spaceships pass each other.
a. What is the relative speed and speed parameter between spaceship A and B, u', $eta'$?
b. In inertial frame A, how long does it take for the tip of spaceship B to move from the
tip of spaceship A to the tail of spaceship A?
c. In inertial frame B, how long does it take for the tip of spaceship B to move from the
tip of spaceship A to the tail of spaceship A?
d. In the Earth frame, how long does it take for the tip of spaceship B to move from the
tip of spaceship A to the tail of spaceship A?

1. A spaceship A (at rest in inertial frame A) of proper length L = 80.0m is moving in the
+x direction at a speed v = 0.720 c as measured in the Earth frame. Another spaceship
B (at rest in inertial frame B) is moving in the opposite direction (-x) with
ux = -0.850 c as measured in the Earth frame. The two spaceships pass each other.
a. What is the relative speed and speed parameter between spaceship A and B, u', eta'?
b. In inertial frame A, how long does it take for the tip of spaceship B to move from the
tip of spaceship A to the tail of spaceship A?
c. In inertial frame B, how long does it take for the tip of spaceship B to move from the
tip of spaceship A to the tail of spaceship A?
d. In the Earth frame, how long does it take for the tip of spaceship B to move from the
tip of spaceship A to the tail of spaceship A?

Added by Michael C.

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