A satellite moves east,taken as the positive x axis direction,at a speed of 0.5 c and a spaceship moves toward it (to the west)at a speed of 0.8 c as measured by an observer on the Earth.The speed of the satellite measured by an observer in the spaceship is
A)8.7 c
B)0.21 c
C)-0.21 c
D)0.93 c
E)-0.93 c

Question

Quizplus · Accepted Answer

Using the relativistic velocity addition formula, the speed of the satellite as measured by the observer in the spaceship is 0.93c.

A Satellite Moves East,taken as the Positive X Axis Direction,at