If you hold a horizontal metal bar several centimeters above the ground and move it through grass, each leaf of grass bends out of the way.?

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Physics

Jason Dawson

3 May, 12:35

If you hold a horizontal metal bar several centimeters above the ground and move it through grass, each leaf of grass bends out of the way.?

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Jamir French · Answer 1

If you spin fast enough, the impact of the glad will break the blade of grass before it can move out of the way. In the same way that if you kick an empty can, it will move out of the way, but if you shoot it with a gun, the bullet will cut through the can before it can move. Keep in mind a mower blade turns at probably 10,000 RPMs.