Two astronauts of equal mass are holding on to each other and moving at a speed of 30 m/s. They push off of each other and one of the astronauts moves in the same direction as the two were initially moving but at 60 m/s. The velocity of the second astronaut is
A) 60 m/s backward.
B) 30 m/s backward.
C) zero.
D) 30 m/s forward.
E) 60 m/s forward.

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The Answer of Two astronauts of equal mass are holding on to each other and moving at a speed of 30 m/s. They push off of each other and one of the astronauts moves in the same direction as the two were initially moving but at 60 m/s. The velocity of the second astronaut is
A) 60 m/s backward.
B) 30 m/s backward.
C) zero.
D) 30 m/s forward.
E) 60 m/s forward.

Two Astronauts of Equal Mass Are Holding on to Each