# Minimum speed

Classical Mechanics Level 4

A particle projected from the ground passes two points, which are at height $$h_{1}=12 m$$ and $$h_{2}=18 m$$ above the ground and at a distance $$d=10 m$$ apart. What could be the minimum speed $$u$$ of projection?

• $$g =10 m/s^2$$. All other force are neglected.

• $$u$$ is in $$m/s$$

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