A Spaceship Is Moving in a Straight Line at a Speed

question 5

Multiple Choice

A spaceship is moving in a straight line at a speed of 0.8 c (relative to Earth) .It launches a missile that moves away from the spaceship (traveling in the same direction as the spaceship) at a speed of 0.6 c.Relative to Earth,the speed of the missile is

• A)greater than 0.8 c and less than c.
• B)1.4 c.
• C)c.
• D)greater than c and less than 1.4 c.