A75.0-kg cross-country skier is climbing a 3.0° slope at a constant speed of 2.00 m/s and encounters air resistance of 25.0 n.
a) find his power output for work done against the gravitational force and air resistance.
b) what average force does he exert backward on the snow to accomplish this?
c) if he continues to exert this force and to experience the same air resistance when he reaches a level area, how long will it take him to reach a velocity of 10.0 m/s?
Answers: 1
Physics, 22.06.2019 02:00
Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?
Answers: 3
Physics, 22.06.2019 11:00
1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
Answers: 1
Physics, 22.06.2019 14:30
What was the first instrument to ever record an earthquake?
Answers: 1
A75.0-kg cross-country skier is climbing a 3.0° slope at a constant speed of 2.00 m/s and encounters...
Social Studies, 18.11.2020 04:10
Mathematics, 18.11.2020 04:10
History, 18.11.2020 04:10
English, 18.11.2020 04:10
Mathematics, 18.11.2020 04:10
Mathematics, 18.11.2020 04:10
Biology, 18.11.2020 04:10
Mathematics, 18.11.2020 04:10
Mathematics, 18.11.2020 04:10