Struggling with an Assignment? Get Expert Help Now - Quick and Easy!

  • Thread starter Thread starter nicknaq
  • Start date Start date
AI Thread Summary
The user is struggling with a seven-question assignment, having only completed the first question. They are seeking assistance to understand and complete the remaining questions, which are due on Friday. Another participant emphasizes that, according to forum guidelines, users must show their attempts at solutions before receiving help. The discussion includes a detailed analysis of free body diagrams for two masses, outlining forces such as friction, tension, and gravity. The user expresses confusion on how to proceed with the calculations for the second mass and is encouraged to sum the forces to find the tension.
nicknaq
Messages
67
Reaction score
0
I need a lot of help. :(

My assignment is attached. 7 Questions. I got number one, that's it. It's due on Friday.


Please someone help me with this. I need to understand it.

Help me out in part is fine. I don't have questions 2-7 done.


Thanks
 

Attachments

Physics news on Phys.org


As per PF guidelines, you must show your attempt at the solutions before we can provide you with any help.

Jared
 


jarednjames said:
As per PF guidelines, you must show your attempt at the solutions before we can provide you with any help.

Jared

Fair enough.

OK for 7.

I set up free body diagrams.

FBD of mass 1 has
- force of friction = 9.8 N pulling it left
- Normal force upwards
- Fg downwards
- tension pulling it right

FBD of mass 2
- friction directed upwards at 35 degrees
- tension also directed upwards at 35 degrees
- Fg perpendicular to the surface (not perpendicular to teh slope)
- normal force perpendicular to slope

X Direction for mass 1
Ftension-Ffriction=ma
Ft=9.8+ma

y Direction for mass 1
Fnormal-Fgravity=0
therefore Fn=Fg


Now I don't know what to do
 


Try to now sum the forces for the other object so that you can find the tension.
 
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Thread 'Correct statement about a reservoir with an outlet pipe'
The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...

Similar threads

Back
Top