B KE₁ViS35°V₁ = ?2.5 mA 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m-high rise as shown in figureabove. We want to find her final speed vƒ at the top, given that the kinetic frictional force betweenher skis and the snow is FR = 38.5 N. We will ignore any friction from the air.a) Given the 2.50m rise and the 35.0° angle of the slope, compute the length s traveled bythe skier. (1 point)b) What are the forces acting on the skier? Which are conservative and which are not? (1points)c) Compute the work done by the frictional force during the displacement s. (1 points)d) Using the work-energy theorem find the final speed of the skier. For that, first compute theinitial kinetic energy of the skier KE,. Then the change in the potential energy from h=0 toh=2.5m. Finally, using the work-energy theorem compute the final kinetic energy of theskier KE. From the final kinetic energy obtain the final velocity Vf. (4 points)

Answered: Image /qna-images/answer/a092bf0d-088a-423c-9bb6-f6a11aa2691b.jpg

Answered: KE₁ Vi S 35° V₁ = ? 2.5 m A 60.0-kg…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 63P: A small object is placed at the top of an incline that is essentially frictionless. The object...

See similar textbooks

Similar questions

A small object is placed at the top of an incline that is essentially frictionless. The object slides down the incline onto a rough horizontal surface, where it stops in 5.0 S after traveling 60 m. (a) What Is the speed of the object at the bottom of the incline and its acceleration along the horizontal surface? (b) What is the height of the incline?
A catapult launches a large stone from ground level at a speed of 45.0 m/s at an angle of 55.0 with the horizontal. The stone returns to ground level shortly thereafter, (a) How long is it in the air? (b) What maximum height does the stone reach? (Neglect, air friction.) (See Section 3.4.)
At the Earth's surface, a projectile is launched straight up at a speed of 7.7 km/s. To what height will it rise? Ignore air resistance. 3.00E6 X Your response differs from the correct answer by more than 10%. Double check your calculations. m Need Help? Read It
On a jump a skier leaves at 15.0 m/s at angle q. With what speed is he traveling at his maximum height of 4.50 m above the level of the end of the jump? (ignore air friction) a. 12.2 m/s b. 16.3 m/s c. 17.4 m/s d. 8.55 m/s e. 11.7 m/s
At the Earth's surface, a projectile is launched straight up at a speed of 7.5 km/s. To what height will it rise? Ignore air resistance. 8.12e+06 X Your response differs from the correct answer by more than 10%. Double check your calculations. m
N 9. A ball is launched vertically, from the ground, with an initial velocity of 25 m/s. When the ball reaches the ground again, what will be its velocity? -25 m/s 34.81 m/s 15.19 m/s O -15.19 m/s PREVIOUS 9 of 10 NEX hp
A 60.0 kg skier with an initial speed of 15 m/s coasts up a 2.50 m high rise as shown in the figure. a. Find her final speed right at the top, in meters per second, given that the coefficient of friction between her skis and the snow is 0.36.
Please do this quickly
1. You are conducting an experiment to find the kinetic coefficienct of friction between a 5kg box and a ramp. The ramp has an angle of 25° above the horizontal. You start the box from rest. release it. and let it slide down the ramp. a) If the box starts at a height of 1 meter above the ground. what is the theo- retical value of its velocity at the bottom of the ramp? b) When you do the experiment, you find that the experimental value of the final velocity is 3.5 m/s. How much mechaical energy was “lost”? c) Assume that all of the mechanical energy 'lost' in part b) was due to Friction. Draw a free-body diagram. and determine the magnitude of the Normal Force acting on the box. d) Using the Normal force, determine the co-efficient of friction between the box and the ramp, if the system lost the amount of energy you caculated in part b). Hint: Use the work done by friction.
A 221-gram ball is thrown at an angle of 17.9 degrees and a speed of 36.7 m/s from the top of a 39.8-m high cliff. Determine the impact speed of the ball when it strikes the ground. Assume negligible air resistance. PSYW
A drone at too great a height drops a box. The box drops straight down the ground and hits at 100 m/s smashing the contents. Neglecting air friction, approximately, how high, in m, was the drone? O 360 O 720 O 250 O 510 O 25
Gayle runs at a speed of 3.20 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is med ocum 15.0 m? Gayle's mass is 49.5 kg, the sled has a mass of 5.45 kg and her brother has a mass of 30.0 kg. m/s Need Help? Read It gy

SEE MORE QUESTIONS

Recommended textbooks for you

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

Physics for Scientists and Engineers, Technology …

Physics

ISBN:

9781305116399

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS