Finding the frictional force of a block

AI Thread Summary
The discussion revolves around calculating the frictional force of a block, with the user expressing uncertainty about their calculations for acceleration. They have determined the normal force but are unsure if they made a mistake in their acceleration calculations. The community suggests providing additional context, such as whether the block is on an incline, and encourages sharing the known variables and previous calculations for better assistance. The conversation highlights the importance of situational factors in physics problems. Clarifying these details will aid in resolving the user's confusion regarding the frictional force.
`Rage
Messages
1
Reaction score
0
Instead of answering all the questions being asked bfeore i make the topic, I'm just going to show you a scan of what I'm being asked for:

http://img184.imageshack.us/img184/7313/picture123146ut0.png


Basically, I got down the normal force, and Idk if made a mistake when i tried to find acceleration and overall tired myself out with this 1

I just want to know if i made a mistake calculating acceleration or if it's something else i have no idea about
 
Last edited by a moderator:
Physics news on Phys.org
It depends on what the object is doing and how it's situated...are we on an incline? Maybe post your givens and what you've done so far.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Finding the work done by a block
Replies
4
Views
3K
Coefficient of kinetic friction of a block sliding across the ceiling
Replies
7
Views
1K
How can I determine the instant the block overcomes static friction?
2
Replies
61
Views
3K
Calculating Force and Acceleration in a Two Block System with Varying Friction
Replies
6
Views
1K
Friction, Mass and Acceleration: Analyzing Block Motion
Replies
6
Views
2K
Analyzing acceleration of block on a ramp connected to a pulley
Replies
15
Views
2K
Determine the friction force in a stacked block scenario
Replies
23
Views
3K
Why Does the Friction Force Not Match in the Two Block Problem?
Replies
15
Views
3K
Why is the direction of kinetic/static friction up a ramp?
Replies
7
Views
1K
Find the direction and the magnitude of Frictional force
Replies
3
Views
764

Hot Threads

Recent Insights

Back
Top