Friday

January 30, 2015

January 30, 2015

Posted by **Megan** on Sunday, January 30, 2011 at 7:29pm.

If M does not accelerate, then T ≤ μsN

M will accelerate if T exceed μsN

The NET force on M (if M does not move) is T

N equals Mg

T equals μsN if M remains at rest

M will accelerate if T exceeds μkN

- Physics please help!! -
**Damon**, Sunday, January 30, 2011 at 7:30pmHey, you try first.

- Physics please help!! -
**Megan**, Sunday, January 30, 2011 at 7:35pmI have already and the answers I submit is wrong.

If M does not accelerate, then T ≤ μsN I

M will accelerate if T exceed μsN I

The NET force on M (if M does not move) is T C

N equals Mg C

T equals μsN if M remains at rest C

M will accelerate if T exceeds μkN I

- Physics please help!! -
**Damon**, Sunday, January 30, 2011 at 7:46pmIf M does not accelerate, then T ≤ μsN I

If it is already moving then it may accelerate with T < musN so I agree false

---------------------------

M will accelerate if T exceed μsN I

Yes it will because it will start and then the force is greater than needed for a constant speed. I say True

---------------------------------

The NET force on M (if M does not move) is T C

NO, if it does not accelerate the NET force is zero. (the friction exactly balances T) False

--------------------------

N equals Mg C

Yes, correct

-----------------------

T equals μsN if M remains at rest C

False, T = mus N only at the point where it starts to move. For smaller T, mus N is greater than T

------------------------------------

M will accelerate if T exceeds μkN I

True if and only if the mass is already moving.

- Physics please help!! -
**Megan**, Sunday, January 30, 2011 at 7:51pmThose answers are coming up as wrong too. This problem is really frustrating me. I don't know what else to do.

- Physics please help!! -
**Aubrie**, Wednesday, February 23, 2011 at 9:50pmI got this exact homework but my questions are slightly different. Maybe it can help u or some one else.

N equals Mg [Correct]

If M does not accelerate, then T ≤ μsN [Correct]

M will accelerate if T exceed μsN [Correct]

The NET force on M (if M does not move) is μkN [Incorrect]

M will accelerate if T exceeds μkN [Incorrect]

T equals μsN if M remains at rest [Incorrect]

**Answer this Question**

**Related Questions**

Physics please help!! - A mass M is initially at rest on a horizontal surface...

Physics - A mass M is initially at rest on a horizontal surface, μs=0.30 ...

Physics - A force of 9.4N pulls horizontally on a 1.2-kg block that slides on a ...

Classical Mechanics Physics - A block of mass m= 3 kg is initially at rest on a ...

physics - A block of mass m= 3 kg is initially at rest on a horizontal surface. ...

Classical Mechanics - Need Help Please - A block of mass m= 3 kg is initially at...

physics - An block of mass m , starting from rest, slides down an inclined plane...

physics - An block of mass m , starting from rest, slides down an inclined plane...

physics - A dockworker loading crates on a ship finds that a 21-kg crate, ...

physics - A dockworker loading crates on a ship finds that a 21-kg crate, ...