Homework Help is Here – Start Your Trial Now!
Science
Physics
3. A crate is pushed in the positive direction along a rough, horizontal surface with a force F that makes an angle e 45.00 below the horizontal. The magnitude of the force applied is F-200. N. The mass of the crate is m 30.0 kg. The coefficient of kinetic friction between the crate and the surface is 0.300 45° a) Draw a clearly labeled free-body diagram for the crate. Carefully identifying the origin of each force. (example: Fe (Earth pulling block)) FN 294141 = 435 N FN: Surface on crate Fr: String on crate FG: Earth on crate FK: Surface on crate Ex 200cos45 =141 N FK UKFN 130.5 N 450 FG=mg 30x9.8 = 294 Use 3 significant figures! F Ex=200sin45 =141 N b) Find the acceleration of the crate EFy 0FN = mg + Fsin45° = 294 + 141 = 435 N EFx Fcos450 - Fk 200 cos450 - 0.300*435 = 141 130.5 = 10.5 N EFx ma a = EFx /m = 10.5 /30.0 = 0.350 m/s2

3. A crate is pushed in the positive direction along a rough, horizontal surface with a force F that makes an angle e 45.00 below the horizontal. The magnitude of the force applied is F-200. N. The mass of the crate is m 30.0 kg. The coefficient of kinetic friction between the crate and the surface is 0.300 45° a) Draw a clearly labeled free-body diagram for the crate. Carefully identifying the origin of each force. (example: Fe (Earth pulling block)) FN 294141 = 435 N FN: Surface on crate Fr: String on crate FG: Earth on crate FK: Surface on crate Ex 200cos45 =141 N FK UKFN 130.5 N 450 FG=mg 30x9.8 = 294 Use 3 significant figures! F Ex=200sin45 =141 N b) Find the acceleration of the crate EFy 0FN = mg + Fsin45° = 294 + 141 = 435 N EFx Fcos450 - Fk 200 cos450 - 0.300*435 = 141 130.5 = 10.5 N EFx ma a = EFx /m = 10.5 /30.0 = 0.350 m/s2

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
See similar textbooks
icon
Related questions
Question

My question is why did we used sine and cosine 45 degree? Is not is supposed to be 315 degree since 45 degree is in quadrant four? Why can't we use 315 degree?

3. A crate is pushed in the positive direction along a rough, horizontal surface with a force F that makes an angle e 45.00 below the horizontal. The magnitude of the force applied is F-200. N. The mass of the crate is m 30.0 kg. The coefficient of kinetic friction between the crate and the surface is 0.300 45° a) Draw a clearly labeled free-body diagram for the crate. Carefully identifying the origin of each force. (example: Fe (Earth pulling block)) FN 294141 = 435 N FN: Surface on crate Fr: String on crate FG: Earth on crate FK: Surface on crate Ex 200cos45 =141 N FK UKFN 130.5 N 450 FG=mg 30x9.8 = 294 Use 3 significant figures! F Ex=200sin45 =141 N b) Find the acceleration of the crate EFy 0FN = mg + Fsin45° = 294 + 141 = 435 N EFx Fcos450 - Fk 200 cos450 - 0.300*435 = 141 130.5 = 10.5 N EFx ma a = EFx /m = 10.5 /30.0 = 0.350 m/s2
Transcribed Image Text:3. A crate is pushed in the positive direction along a rough, horizontal surface with a force F that makes an angle e 45.00 below the horizontal. The magnitude of the force applied is F-200. N. The mass of the crate is m 30.0 kg. The coefficient of kinetic friction between the crate and the surface is 0.300 45° a) Draw a clearly labeled free-body diagram for the crate. Carefully identifying the origin of each force. (example: Fe (Earth pulling block)) FN 294141 = 435 N FN: Surface on crate Fr: String on crate FG: Earth on crate FK: Surface on crate Ex 200cos45 =141 N FK UKFN 130.5 N 450 FG=mg 30x9.8 = 294 Use 3 significant figures! F Ex=200sin45 =141 N b) Find the acceleration of the crate EFy 0FN = mg + Fsin45° = 294 + 141 = 435 N EFx Fcos450 - Fk 200 cos450 - 0.300*435 = 141 130.5 = 10.5 N EFx ma a = EFx /m = 10.5 /30.0 = 0.350 m/s2
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 1 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Space-time
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
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON
SEE MORE TEXTBOOKS