44. Consider massive gliders that slide friction-free along a horizontal air track. Glider a. has a
mass of 1 kg, a speed of 1 m/s, and collides with glider B, which has a mass of 5 kg and is at
rest. If they stick upon collision, their speed after collision will be
a. ¼ m/s.
b. 1/5 m/s.
c. 1/6 m/s.
d. 1 m/s.
e. none of these