A car with a mass of 20 tons, moving horizontally at a speed of 2 m / s, collides with another car of the same
| February 19, 2021 | education
A car with a mass of 20 tons, moving horizontally at a speed of 2 m / s, collides with another car of the same mass, moving towards it at a speed of 1 m / s, and automatically interlocks with it. At what speed and in what direction will the cars move after coupling?
Decision:
m (v1 – v 2) = 2mv3
2 -1 = mv3
1 = 20v3
v3 = 0.05 m / s
Answer: 0.05 m / s
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