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3. A 3.2 kg box on an incline plane is push from the top and travels down with the initial speed of 9.8m/s. The incline is 5.0 m long and the angle of inclination is 30 deg. Determine the velocity of the box at the bottom. The coefficient of friction between the box and incline lane is 0.2 "

3. A 3.2 kg box on an incline plane is push from the top and travels down with the initial speed of 9.8m/s. The incline is 5.0 m long and the angle of inclination is 30 deg. Determine the velocity of the box at the bottom. The coefficient of friction between the box and incline lane is 0.2 "

An Introduction to Physical Science
An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter4: Work And Energy
Section: Chapter Questions
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WORK, ENERGY AND POWER (NOTE: For the following problems, apply the work mechanical energy theorem) 1. A stone is thrown vertically upward with an initial speed of 22.8 m/s from the edge of the roof of a building 28.2 m high. The stone just misses the edge of the building on the way down and strikes the street below. Determine the maximum height above the ground reached by the stone and the stone's velocitv hefore it strikes the ground. (NOTE: use work mechanical energy equation in this problem) ( 2. A horse pulls a cart with a force of 200 N at an angle of 27 deg with the horizontal and moves along at a speed of 10 kph. a. How much work does the horse do in 12 mins. , b. Find the power out of the horse in Hp ( 3. A 3.2 kg box on an incline plane is push from the top and travels down with the initial speed of 9.8m/s. The incline is 5.0 m long and the angle of inclination is 30 deg. Determine the velocity of the box at the bottom. The coefficient of friction between the box and incline lane is 0.2"
Transcribed Image Text:WORK, ENERGY AND POWER (NOTE: For the following problems, apply the work mechanical energy theorem) 1. A stone is thrown vertically upward with an initial speed of 22.8 m/s from the edge of the roof of a building 28.2 m high. The stone just misses the edge of the building on the way down and strikes the street below. Determine the maximum height above the ground reached by the stone and the stone's velocitv hefore it strikes the ground. (NOTE: use work mechanical energy equation in this problem) ( 2. A horse pulls a cart with a force of 200 N at an angle of 27 deg with the horizontal and moves along at a speed of 10 kph. a. How much work does the horse do in 12 mins. , b. Find the power out of the horse in Hp ( 3. A 3.2 kg box on an incline plane is push from the top and travels down with the initial speed of 9.8m/s. The incline is 5.0 m long and the angle of inclination is 30 deg. Determine the velocity of the box at the bottom. The coefficient of friction between the box and incline lane is 0.2"
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