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.

Additional Practice Problems

Projectile Motion: Horizontal & Negative Launch