Finding static force and kinetic force

AI Thread Summary
To find the coefficient of kinetic friction for a 4.00 kg block pushed along the ceiling with an 85 N force at a 55-degree angle, it is essential to analyze the forces acting on the block. A free body diagram should be drawn to separate the forces into horizontal and vertical components. The equation F = ma can be applied in both directions to determine the net force and acceleration. The lack of a qualified teacher has hindered the understanding of these concepts, making it challenging to solve the problem. Assistance in applying these principles is needed to find the solution.
tallbus1
Messages
12
Reaction score
0

Homework Statement


A 4.00 kg block is pushed along the ceiling with aconstant applied force of 85 N that acts at an angle of 55 degrees with the horizontal. The block accelerates to the right at 6.00 m/s2. Determine the coefficient of kinetic force between the block and cieling


Homework Equations


No idea!


The Attempt at a Solution


Again, no idea

Our physics class has been without a degreed teacher since the beggining of the school year and there are serious holes in our classes learning yet we are expected to be learning at the pace of other classes, while this is hardly an excuse I could use some help on this problem.
 
Physics news on Phys.org
draw a free body diagram.
split all forces in horizontal and vertical components, you have F = ma in both directions.
 

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

Magnitude of the force of static friction
Replies
2
Views
2K
What is the static friction force acting on the object?
Replies
2
Views
2K
Static and kinetic friction help?
Replies
1
Views
1K
Normal force of a block with a massless rope
Replies
13
Views
2K
Calculating Applied Force for a Moving Block on a Table
Replies
9
Views
4K
Static Friction/Determining Force
Replies
20
Views
2K
Find the frictional force between a block and a wall
Replies
5
Views
3K
Coefficients of kinetic and static friction in a pulley
Replies
28
Views
5K
Contact force of block on a wall
Replies
5
Views
3K
How to find the coefficient of kinetic friction
Replies
4
Views
3K

Hot Threads

Recent Insights

Back
Top