If we could measure the mass of the spaceship as it goes by,what would it be?
A)Its mass is infinite.
B)Its mass is greater than its rest mass.
C)Its mass is the same as it would be if it were not moving.
D)Its mass is less than its rest mass.

Question

Quizplus · Accepted Answer

According to the theory of relativity, as an object approaches the speed of light, its mass increases relative to an observer. Therefore, the mass of the spaceship would be greater than its rest mass.

If We Could Measure the Mass of the Spaceship as It