A child starts sledding from rest, going down a 40 m long 7.5° incline, then coasting across a horizontal stretch. The mass of the sled + child is 35 kg, and the coefficient of kinetic friction is 0.060. a. Make force diagrams for the sled + child on both the hill and the horizontal stretch. b. Resolve the weight of the sled + child along and perpendicular to the plane. c. Determine the reaction force on the sled + child. d. Determine the speed of the sled + child at the bottom of the incline. e. How far along the horizontal stretch does the sled + child travel before stopping? f. What is the total time for the ride? g. Determine how much energy that is transferred to thermal energy. h. Determine how much work is done on the sled + child by the gravitational force while the child + sled is moving along the incline. i. By considering the energy of the system and energy transformations, determine the speed of the sled + child at the bottom of the incline. Does your answer agree with part d?
A child starts sledding from rest, going down a 40 m long 7.5° incline, then coasting across a horizontal stretch. The mass of the sled + child is 35 kg, and the coefficient of kinetic friction is 0.060. a. Make force diagrams for the sled + child on both the hill and the horizontal stretch. b. Resolve the weight of the sled + child along and perpendicular to the plane. c. Determine the reaction force on the sled + child. d. Determine the speed of the sled + child at the bottom of the incline. e. How far along the horizontal stretch does the sled + child travel before stopping? f. What is the total time for the ride? g. Determine how much energy that is transferred to thermal energy. h. Determine how much work is done on the sled + child by the gravitational force while the child + sled is moving along the incline. i. By considering the energy of the system and energy transformations, determine the speed of the sled + child at the bottom of the incline. Does your answer agree with part d?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
Transcribed Image Text:A child starts sledding from rest, going down a 40 m long 7.5° incline, then coasting across a
horizontal stretch. The mass of the sled + child is 35 kg, and the coefficient of kinetic friction is
0.060.
a. Make force diagrams for the sled + child on both the hill and the horizontal stretch.
b. Resolve the weight of the sled + child along and perpendicular to the plane.
c. Determine the reaction force on the sled + child.
d. Determine the speed of the sled + child at the bottom of the incline.
e. How far along the horizontal stretch does the sled + child travel before stopping?
f. What is the total time for the ride?
g. Determine how much energy that is transferred to thermal energy.
h. Determine how much work is done on the sled + child by the gravitational force while the
child + sled is moving along the incline.
i. By considering the energy of the system and energy transformations, determine the speed
of the sled + child at the bottom of the incline. Does your answer agree with part d?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 4 steps with 2 images
Recommended textbooks for you
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY