Apole vaulter runs forward, plants his pole, rises in the air and lands. what point represents his greatest amount of gravitational potential energy? a) when he initially lands b) as he runs forward to plant the pole c) just before he starts to fall to the ground d) after take-off as the pole expands and lifts the vaulter toward the bar
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Apole vaulter runs forward, plants his pole, rises in the air and lands. what point represents his g...
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