With reference to the diagram above, select the correct expression for the work done by friction (W f) on the sled. DO NOT GUESS, work it out! Hint 1: the force of kinetic friction is f While on the incline, the magnitude of the normal force on the sled is N = m*g* = uk * N in the direction opposite of motion. Hint #2: cos (15°).

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter7: Conservation Of Energy
Section: Chapter Questions
Problem 21P: A 5.00-kg block is set into motion up an inclined plane with an initial speed of i = 8.00 m/s (Fig....
icon
Related questions
Topic Video
Question
Question 16
With reference to the diagram above, select the correct expression for the work
done by friction (W f) on the sled. DO NOT GUESS, work it out! Hint 1: the force of
kinetic friction is f
uk * N in the direction opposite of motion. Hint #2:
While on the incline, the magnitude of the normal force on the sled is
N = m* g* cos (15º).
W; = 0
OW;
Hk * m * g * h * cos (180°)
'W;
Hk * m * g * cos (15°) *
h
sin(15°)
cos (180°)
OW; = µk * m * g * h * cos (15°)
OW;
cos (15°) * h * sin (15°) * cos (180°)
m
Transcribed Image Text:Question 16 With reference to the diagram above, select the correct expression for the work done by friction (W f) on the sled. DO NOT GUESS, work it out! Hint 1: the force of kinetic friction is f uk * N in the direction opposite of motion. Hint #2: While on the incline, the magnitude of the normal force on the sled is N = m* g* cos (15º). W; = 0 OW; Hk * m * g * h * cos (180°) 'W; Hk * m * g * cos (15°) * h sin(15°) cos (180°) OW; = µk * m * g * h * cos (15°) OW; cos (15°) * h * sin (15°) * cos (180°) m
The Super Sled travels with an initial kinetic energy of 3369 J horizontally and to the
right along a frictionless flat surface, initially at a height of zero (initial gravitational
potential energy = 0). The driver briefly engages the rocket over a distance (Ax) of
2.000 m, pushing the sled with a force of 400.0 N over that distance. The rocket is
then turned off. The sled then goes up an inclined surface with a rough surface. The
coefficient of kinetic friction on the incline is uk. At the top of the incline, the sled
reaches a height h = 1.500 m above the ground where the surface becomes flat and
frictionless again. The sled (including the rocket and driver) has a total mass of 87.00
kg.
(Notes: assume that g = 9.810 m/s² , and that the mass of fuel used by the rocket is
negligible. Do not use scientific notation).
After &,
rocket
rocket
Before propulsion
propulsion
starts
ends
rough inclined surface
rocket
frictionless
engaged
coefficient of kinetic friction = H
surface
h = 1.500 m
15.000)
frictionless
surface
Ax = 2.000 m
Transcribed Image Text:The Super Sled travels with an initial kinetic energy of 3369 J horizontally and to the right along a frictionless flat surface, initially at a height of zero (initial gravitational potential energy = 0). The driver briefly engages the rocket over a distance (Ax) of 2.000 m, pushing the sled with a force of 400.0 N over that distance. The rocket is then turned off. The sled then goes up an inclined surface with a rough surface. The coefficient of kinetic friction on the incline is uk. At the top of the incline, the sled reaches a height h = 1.500 m above the ground where the surface becomes flat and frictionless again. The sled (including the rocket and driver) has a total mass of 87.00 kg. (Notes: assume that g = 9.810 m/s² , and that the mass of fuel used by the rocket is negligible. Do not use scientific notation). After &, rocket rocket Before propulsion propulsion starts ends rough inclined surface rocket frictionless engaged coefficient of kinetic friction = H surface h = 1.500 m 15.000) frictionless surface Ax = 2.000 m
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Mechanical Work done
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
University Physics Volume 1
University Physics Volume 1
Physics
ISBN:
9781938168277
Author:
William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:
OpenStax - Rice University
Physics for Scientists and Engineers: Foundations…
Physics for Scientists and Engineers: Foundations…
Physics
ISBN:
9781133939146
Author:
Katz, Debora M.
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781285737027
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
Physics for Scientists and Engineers, Technology …
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning