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Average force needed for record throws
The masses of the javelin, discus, and shot are .9 kg, 2 kg, and 7.2 jg, respectively, and the record throws in the corresponding track events are about 98 m, 74 m, and 23 m, respectively. Neglecting air resistance, what is the average force exerted on each object during the throw, assuming the force acts over a distance of 2.0 m. Does this suggest that air resistance is an important factor?
How can I determine if air resistance is an important factor once I get the answers?
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Physics Tutorial Center Staff 8 years ago
- If your answer is surprisingly small, then air resistance must be a major factor. If you calculated that the record throw required 10 N of force, you know something must be up because that sounds easy to beat.
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