Jump to content

Friction Question 2


Arnav
 Share

Recommended Posts

I am having trouble understanding this question. The questions asks the direction of friction. The correct answer is the is that the system cannot remain in equilibrium.

One more question is that if the friction coefficient between A and the wall had not been zero what would have been the direction of friction due to A on B then?

16281891005393620465395449797487.jpg

Link to comment
Share on other sites

  • Phi for All changed the title to Friction Question 2
2 hours ago, Arnav said:

I am having trouble understanding this question. The questions asks the direction of friction. The correct answer is the is that the system cannot remain in equilibrium.

One more question is that if the friction coefficient between A and the wall had not been zero what would have been the direction of friction due to A on B then?

16281891005393620465395449797487.jpg

 

This question is incomplete.

Link to comment
Share on other sites

3 hours ago, Arnav said:

@studiot do you mean that the magnitude of coefficient of friction, the weight of the blocks is not given? or is the question incorrect?

Neither.

You haven't posted the whole question.

"The friction on B due to A in equilibrium"

is an incomplete sentence that may or may not contain the actual question.

 

Further the blocks must be sliding down the wall if there is no friction between the wall and the blocks.
So how is F maintained ?

Link to comment
Share on other sites

here is the rest of the 5th question, the correct answer is given as the 4th option

16282634516641289918178746261916.jpg

i think by equilibrium the author means to ask whether the force force F on itself,alone, will it be able to keep the blocks in equilibrium?

Link to comment
Share on other sites

If you think about my free body diagrams in your other friction questions and draw similar ones here you can answer both question 5

Are the blocks in equilibrium ?

and

question 6 which follows it.

Since the wall is smooth, both blocks must be falling freely under gravity.

Do objects of unequal weight fall at different speeds ?

 

 

 

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.