How to estimate the average power output on the way up

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Q. A cylindrical container 1.60 {rm m} tall contains mercury to a certain depth, d. The rest of the cylinder is filled with water.

If the pressure at the bottom of cylinder is two atmospheres, what is the depth d?

Q. Throughout a workout, the football players at State U ran up the stadium stairs in 55s. The stairs are 160 m long and inclined at an angle of 30°. If a typical player has a mass of 105 kg, estimate the average power output on the way up. Overlook friction and air resistance.

Reference no: EM1382585

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