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Two blocks of masses 5 kg and 2 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 7m/s to the heavier block in the direction of the lighter block.The velocity of the centre of mass is what???
Two blocks of masses 5 kg and 2 kg are connected by a spring of negligible mass and placed on a frictionless horizontal surface. An impulse gives a velocity of 7m/s to the heavier block in the direction of the lighter block.The velocity of the centre of mass is what???

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3 years ago

## Answers : (1)

Arun
25768 Points
```							Velocity of centre of massVcm = [m1v1 + m2v2] / [m1+m2]        = [(5x7) + (2x0)] / [5+2]        = 5       = 5 m/sec Hope it helps
```
3 years ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions