A rock climber wears a 75-kg knapsack while scaling a cliff, Physics

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A rock climber wears a 75-kg knapsack while scaling a cliff

A rock climber wears a 7.5-kg knapsack while scaling a cliff. After 30 minute, the climber is 8.2 m above the starting point.

1. What is the average power developed by the climber?

2. How much work does the climber do on the knapsack?

3. If the climber weighs 645 N, how much work does she do lifting herself and the knapsack?

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Physics: A rock climber wears a 75-kg knapsack while scaling a cliff

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