I need help understanding a physics assignment: Question 20-22

Anonymous
timer Asked: Dec 15th, 2015
account_balance_wallet $5

Question Description

Tutor Answer

rohitcrajora
School: Boston College

Thank you for the opportunity to help you with your question!

20) Let's begin with the definitions:

a)Force: We can define force as push or pull on an object as a result of its interaction with another object.

b)Acceleration: Rate of change of velocity is known as acceleration.

c)Mass: Mass represents the amount of matter in an object.

d)Weight: It is the force exerted on body by gravity.


21)We have three figures:

Figure 1: To balance the force draw a force of 15N in downward direction.

Figure 2: To balance the force draw a force of 10N acting away from the object in right direction.

Figure 3: To balance the forces draw a 20N force upwards.


22) In the given figure:

Most KE: is at point C

Most PE: is at point A

PE=KE: is at point B

Greatest Mechanical energy: is at point A considering the friction

Energy transformation between A and D: At A it is purely PE but at D it is PE+KE

Please let me know if you need any clarification. I'm always happy to answer your questions.

flag Report DMCA
Review

Anonymous
Thanks, good work

Similar Questions
Hot Questions
Related Tags
Study Guides

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors