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1. |
Two bodies of masses 5 kg and 3 kg are moving towards each other at velocities of 3 m/s and 5 m/s, respectively. What is the velocity of their centre of mass? |
A. | 0.25 m/s towards 3 kg |
B. | Upredictable |
C. | The centre of mass is stationary |
D. | 0.5 m/s towards 5 kg |
Answer» D. 0.5 m/s towards 5 kg | |