# phsycis

posted by .

A 62 kg hiker climbs to the top of a 3700 m-high mountain. The climb is made in 5.0 h starting at an elevation of 2600 m. Calculate the average power output in watts. Calculate the average power output in horsepower.

• phsycis -

First you need to calculate the PE needed to make the climb.
U=mgh U=(62*(2600-3700)*9.8)
This value is energy or work denoted as a Joule. A Watt= Joule/Seconds
So simply take your joules and divide it by the time the trip took. Convert your 5hr to seconds so...

W=(62*(2600-3700)*9.8)/(5*3600)

easy way to find HP is 1W=0.00134102209HP or

HP=(62*(2600-3700)*9.8)/(5*3600)*0.00134102209

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### Physics

A 50.0-kg student climbs a 5.00-m-long rope and stops at the top. (a) What must her average speed be in order to match the power output of a 200 W light bulb?
2. ### physics

A 50kg student climbs a 5m long rope and stops at the top. (a) What must her average speed be in order to match the power output of a 200-W lightbulb?
3. ### physics

A 64 kg hiker climbs to the top of a 3700 m-high mountain. The climb is made in 5.5 h starting at an elevation of 2900 m. Calculate the average power output in watts. Calculate the average power output in horsepower & Calculate assuming …
4. ### Physics

In the rope climb, a 68 athlete climbs a vertical distance of 9.0 in 13 . What minimum power output was used to accomplish this feat?
5. ### Physics

In the rope climb, a 68 kg athlete climbs a vertical distance of 9.0 m in 13 s. What minimum power output was used to accomplish this feat?
6. ### Physics

A 67 kg hiker climbs to the top of a 3700 m-high mountain. The climb is made in 5.5 h starting at an elevation of 2800 m. Calculate assuming the body is 16% efficient, what rate of energy input was required.
7. ### Physics

During each heartbeat, approximately 71 cm3 of blood is pushed from the heart at an average pressure of 105 mm-Hg. Calculate the power output of the heart, in watts, assuming 68 beats per minute.
8. ### physics

a 70-kg man climbs a mountain 1200 m high (measured from the base) in 4 h and uses 9.8 kcal/min. calculate his power consumption in watts. what is his power output in useful work?
9. ### physics

A 50.7 kg student climbs a 6.35 m long rope and stops at the top. What must her average speed be in order to match the power output of a 130 W lightbulb
10. ### Physics

During each heart beat, approximately 70cubic cm of blood is from the heart at an average pressure of 105mmHg. Calculate the power output of the heart, in watts, assuming 70 beats per minute.

More Similar Questions