Physics Practice Problems Projectile Motion: Horizontal & Negative Launch Practice Problems Solution: Some plants disperse their seeds when the fruit sp...

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# Solution: Some plants disperse their seeds when the fruit splits and contracts, propelling the seeds through the air. The trajectory of these seeds can be determined with a high-speed camera. In an experiment on one type of plant, seeds are projected at 20 cm above ground level with initial speeds between 2.3 m/s and 4.6 m/s. The launch angle is measured from the horizontal, with +90 corresponding to an initial velocity straight up and -90^circ straight down.If a seed is launched at an angle of 0 with the maximum initial speed, how far from the plant will it land? Ignore air resistance, and assume that the ground is flat.

###### Problem

Some plants disperse their seeds when the fruit splits and contracts, propelling the seeds through the air. The trajectory of these seeds can be determined with a high-speed camera. In an experiment on one type of plant, seeds are projected at 20 cm above ground level with initial speeds between 2.3 m/s and 4.6 m/s. The launch angle is measured from the horizontal, with +90 corresponding to an initial velocity straight up and -90 straight down.

If a seed is launched at an angle of 0 with the maximum initial speed, how far from the plant will it land? Ignore air resistance, and assume that the ground is flat.

Projectile Motion: Horizontal & Negative Launch

Projectile Motion: Horizontal & Negative Launch

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Projectile Motion: Horizontal & Negative Launch

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