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 ismedocum15.0 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/sNeed Help?Read Itgy

Answered: Image /qna-images/answer/1a44b2b0-a27a-4060-bc25-97b7a894bbbc.jpg

Answered: Gayle runs at a speed of 3.20 m/s and…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 79AP: A ski jumper starts from rest 50.0 m above the ground on a frictionless track and flies off the...

See similar textbooks

Similar questions

A 8.00-kg block of ice is released from rest at the top of a 1.60-m long frictionless ramp, slides downhill, reaching a speed of 3.25 m/s at the bottom. What is the angle between the ramp and the horizontal?
1. Side by side, two round objects are released from the top building, object 1 is released from rest, falls freely and reached an impact speed of 4m/s on the ground. Object 2 is released with an initial speed of 3m/s. What is the speed of object 2 when it reached the ground? a. 4 m/s b. 5 m/s c. 6 m/s d. 7 m/s e. 8 m/s 2. A person drops a hammer from the top of a boat’s vertical mast while the boat is moving rapidly and steadily straight forward. Where will the hammer hit the deck? a. ahead of the base of the mast b. behind the base of the mast c. at the base of the mast d. on the windward side of the base of the mast
A 62 kg trampoline artist jumps upward from the top of a platform with a vertical speed of 4.5 m/s. How fast is he going as he lands on the trampoline, 2 m below?
A frustrated physics student throws her physics text straight down with a speed of 15 m/s from a 50 m high bridge. Neglecting air friction, how much time would it take for the book to reach the water? 2.0 s 1.6 s 3.6 s 2.9 s
A force of F=x^2 in Newtons acts on an object of mass m= 2 kg. If the object is at rest at x= 0 when the force F begins to act on it, what is the object’s speed at the position x= 3 m? A) 3 m/s B) 6 m/s C) 9 m/s D) 27 m/s
A car of mass 1200 kg climbs a 300 hill with vertical height of 100 m. If the car has a net forward thrust of 7000 N, what is the speed of the car at the top of the hill? a. 7.13 m/s^2 b. 6.45 m/s^2 c. 5.83 m/s^2 d. 4.52 m/s^2 e. 3.97 m/s^2
A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the end of the slide traveling horizontally. As the drawing shows, one person hits the water 5.00 m from the end of the slide in a time of 0.627 s after leaving the slide. Ignore friction and air resistance, find the height H in the drawing.
If a 3.15 kg object is placed on a frictionless incline of 70.5 º and released from rest, what is speed of the object down the incline after traveling a distance of 1.5 m? Enter a number rounded to 2 decimal places and assume it has proper SI units.
A brave cliff diver jumps off the cliff of Tropea, Calabria (Italy), from a height if 16.35 m, from rest. What is the speed with which the diver hits the surface of the water?
A ball of mass 522g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x=1.09m from the end of the track after falling a vertical distance h2=1.10m from the end of the track. a)At what height above the ground does the ball start to move? b) what is the speed of the ball when it leaves the track? c)what is the speed of the ball when it hits the ground?
An athlete jumping vertically on a trampoline leaves the surface with a velocity of 8.5 m/s upward. What maximum height does she reach? (a) 13 m (b) 2.3 m (c) 3.7 m (d) 0.27 m (e) The answer cant be determined because the mass of the athlete isnt given.
Two blocks are connected by a light string that passes over a frictionless pulley as in Figure P5.38. The system is released from rest while m2 is on the floor and m1 is a distance h above the floor. (a) Assuming m1 m2, Find an expression for the speed of m1 just as it reaches the floor. (b) Taking m1 = 6.5 kg, m2 = 4.2 kg, and h = 3.2 m, evaluate your answer to part (a), and (c) find the speed of each block when m1 has fallen a distance of 1.6 m. Figure P5.38

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

Glencoe Physics: Principles and Problems, Student…

Physics

ISBN:

9780078807213

Author:

Paul W. Zitzewitz

Publisher:

Glencoe/McGraw-Hill

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

Glencoe Physics: Principles and Problems, Student…

Physics

ISBN:

9780078807213

Author:

Paul W. Zitzewitz

Publisher:

Glencoe/McGraw-Hill

Principles of Physics: A Calculus-Based Text

Physics

ISBN:

9781133104261

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Physics for Scientists and Engineers with Modern …

Physics

ISBN:

9781337553292

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS