Homework Statement
Differentiation question on physics spring
https://sg.answers.yahoo.com/question/index?qid=20140819111550AAvmAjH
Homework Equations
The Attempt at a Solution
https://www.icloud.com/photostream/#AEGY8gBYGdYO6S;2B1E78BF-9378-47B0-B87C-BD50541B4EE7
Why I...
Homework Statement
Question 1
Which statement is true of the coefficient of static friction?
Answer
It is the force resisting motion.
It is proportional to the static friction force.
It is a dimensionless quantity expressing the ratio of limiting friction to normal reaction...
I thinking the block at rest mean the slope is not high enough to make it move. Therefore I can only conclude that the static friction is equivalent to friction force
1. The ratio of limiting friction to the normal reaction is known as
Answer
a)angle of friction.
b)angle of repose.
c)coefficient of static friction.
d)coefficient of kinetic friction.
Question 2
When a block is at rest on...
Okay Ty, now I just worry about wether should I include the wheel. Because my classmate said the wheel should be in contact with ground, there are no outrigger or hydraulic, it is just stabilizer
Homework Statement
https://www.icloud.com/photostream/#AE5oqs3qHTNWQ;B21C49F3-02FB-4EA3-8CE5-D1E2C1FA7C49
Homework Equations
The Attempt at a Solution
https://www.icloud.com/photostream/#AE5oqs3qHTNWQ;A55D9431-FD6D-4884-9AFC-C4D7C8E39AF1