Neglect air resistance
A 58 kg pole vaulter running at 14 m/s vaults over the bar. Her speed when she is above the bar is 1.7 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
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If you stand on a spring scale, showing weight, in your bathroom at home and it reads 588 N, it means that your mass is 60 kg. If instead you stand on the scale in an elevator, a) how many Newton's would it read.
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