A pair of air pucks on an air table are set in motion when a compressed spring between them is released. If one puck moves with twice the speed of the other, then its mass is
A. half the mass of the other.
B. the same mass as the other.
C. twice the mass as the other.
D. need more information
Answer:A
A pair of air pucks on an air table are set in motion when a compressed spring between them is released. If one puck moves with twice the speed of the other, then its mass is
A. half the mass of the other. B. the same mass as the other. C. twice the mass as the other. D. need more information