FREE Trial

In Fig. P5.68 m 1 = 20.0 kg and α = 53.1 o . The coefficient of

Question:

In Fig. P5.68 m1= 20.0 kg and α = 53.1o. The coefficient of kinetic friction between the block and the incline is Î¼k= 0.40. What must be the mass of the hanging block if it is to descend 12.0 m in the first 3.00 s after the system is released from rest?

Figure P5.68: 

m, m,

Transcribed Image Text:

m, m,

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Answer rating: 78% (14 reviews)

Identify This is a system having constant acceleration so we can use the standard kin...View the full answer


answer-question-section
Answered By
tutor-profile-image
Nyron Beeput
I am an active educator and professional tutor with substantial experience in Biology and General Science. The past two years I have been tutoring online intensively with high school and college students. I have been teaching for four years and this experience has helped me to hone skills such as patience, dedication and flexibility. I work at the pace of my students and ensure that they understand. My method of using real life examples that my students can relate to has helped them grasp concepts more readily. I also help students learn how to apply their knowledge and they appreciate that very much.
4.00+ 1+ Reviews 10+ Question Solved
Related Book For  book-img-for-question
University Physics with Modern Physics

University Physics with Modern Physics

ISBN: 978-0321696861

13th edition

Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford

See More Books
Question Posted:
See More Questions

Related Video

Static friction and kinetic friction are two types of friction that occur when two objects are in contact with each other. Static friction is the force that must be overcome to initiate motion between two surfaces that are in contact with each other but are not moving relative to each other. It is caused by the interlocking of rough surfaces at the microscopic level, and it increases as the force pushing the surfaces together increases. Once motion between the surfaces starts, the static friction is no longer present. Kinetic friction, also known as sliding friction, is the force that opposes the motion of two surfaces that are in contact with each other and are moving relative to each other. It is caused by the rubbing of the surfaces against each other and the resistance of the molecules in the surfaces to being moved. Kinetic friction is generally less than static friction, but it can still be a significant force, especially at high speeds. Both static and kinetic friction can be quantified using a coefficient of friction, which is a dimensionless number that represents the ratio of the frictional force between two surfaces to the normal force (the force perpendicular to the surfaces). The coefficient of static friction is typically greater than the coefficient of kinetic friction for a given pair of surfaces, because it takes more force to overcome the interlocking of the surfaces at rest than to maintain motion once it has started.

Students also viewed these Physics questions

The Rosa Luxemburg Reader 1st Edition - ISBN: 158367103X - Free Book