3. A 50-kg box is placed on an inclined plane making an angle of 30 with the horizontal. If the coefficient of kinetic friction is 0.3, what is the resultant force on the box? A 15 -kg box is placed on an inclined plane making an angle of 5° with the horizontal, Calculate

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)...
icon
Related questions
Topic Video
Question

ANSWER ONLY 3. READ THE INSTRUCTIONS 

PROBLEM SETS: FRICTION
Solve what is asked the given problems. Show compiete process and box the final answer. Round off
final answer to the nearest hundredths.
1. A force of 50N is needed to push a 250N load on the floor, what is the coefficient of friction?
2. A 50-kg box is pulled with uniform speed along a horizontal floor by a force parallel to the floor.
The coefficient of friction is 0.30. find the magnitude of the force.
3. A 50-kg box is placed on an inclined plane making an angle of 30 ° with the horizontal. If the
coefficient of kinetic friction is 0.3, what is the resultant force on the box?
4. A 15 -kg box is placed on an inclined plane making an angle of 5° with the horizontal, Calculate
the force needed to pull the mass up the plane if the coefficientof kinetic friction is 0.20.
5. A box is given a push so it slides with the horizontal floor. If the coefficient of kinetic friction is
0.2 and the push gives the box an initial velocity of 4m/s, how far will the box go?
6. How much force is needed to keep a 1200-kg car moving at constant velocity on a level concrete
road? (uk= 0.04)
7. A force of 200 N is just sufficient to start a 50 kg steel trunk moving across a wooden floor. Find
the coefficient of static friction.
8. A 40 kg wooden crate is being pushed across a wooden floor with a force of 160 N. If uk= 0.3,
find the acceleration of the crate.
9. A bowling ball with an initial velocity of 3m/s rolls along a level floor for 50 m before coming to
stop. What is the coefficient of rolling friction?
10. The coefficient of kinetic friction and wet concrete road is 0.5.
a. Find the minimum time in which the car whose initial velocity is 50km/h can come to a
stop on such a road.
b. What distance will the car cover in this time?
Transcribed Image Text:PROBLEM SETS: FRICTION Solve what is asked the given problems. Show compiete process and box the final answer. Round off final answer to the nearest hundredths. 1. A force of 50N is needed to push a 250N load on the floor, what is the coefficient of friction? 2. A 50-kg box is pulled with uniform speed along a horizontal floor by a force parallel to the floor. The coefficient of friction is 0.30. find the magnitude of the force. 3. A 50-kg box is placed on an inclined plane making an angle of 30 ° with the horizontal. If the coefficient of kinetic friction is 0.3, what is the resultant force on the box? 4. A 15 -kg box is placed on an inclined plane making an angle of 5° with the horizontal, Calculate the force needed to pull the mass up the plane if the coefficientof kinetic friction is 0.20. 5. A box is given a push so it slides with the horizontal floor. If the coefficient of kinetic friction is 0.2 and the push gives the box an initial velocity of 4m/s, how far will the box go? 6. How much force is needed to keep a 1200-kg car moving at constant velocity on a level concrete road? (uk= 0.04) 7. A force of 200 N is just sufficient to start a 50 kg steel trunk moving across a wooden floor. Find the coefficient of static friction. 8. A 40 kg wooden crate is being pushed across a wooden floor with a force of 160 N. If uk= 0.3, find the acceleration of the crate. 9. A bowling ball with an initial velocity of 3m/s rolls along a level floor for 50 m before coming to stop. What is the coefficient of rolling friction? 10. The coefficient of kinetic friction and wet concrete road is 0.5. a. Find the minimum time in which the car whose initial velocity is 50km/h can come to a stop on such a road. b. What distance will the car cover in this time?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
First law of motion
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.
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