Angle of Incline Calculation with Coefficient of Friction

  • Thread starter Thread starter db7db7db7
  • Start date Start date
  • Tags Tags
    Friction Incline
AI Thread Summary
To calculate the angle of incline, the forces acting on a 50N body being pulled up with a 35N force must be analyzed, considering the coefficient of friction at 0.25. The weight acts downward, while friction opposes the motion, requiring the weight component perpendicular to the incline to be factored in. The relationship between the angle, weight, and friction must be established to derive the necessary equation. The final answer for the angle of incline is confirmed to be 28.73 degrees. Understanding the interplay of these forces is crucial for accurate calculations.
db7db7db7
Messages
1
Reaction score
0
Hey would someone mind taking a crack at this one? I know the final answer is 28.73, however I can't figure out the equation to get it.

On a certain inclined plane, a body weighs 50N and requires a force of 35N to pull it up the incline. If the coefficient of friction is 0.25, find the angle of the incline.
 
Physics news on Phys.org
Why don't you take a crack at it?

Call the angle θ and analyze the forces acting on the body as it is pulled up the incline.
 
at what angle is the force being applied?
 
well, first you need to remember that the weight (50N) is directed downwards, but the force of friction needs the weight applied PERPENDICULAR to the surface. Find this, then you will get your angle.
 
Aeroneer said:
well, first you need to remember that the weight (50N) is directed downwards, but the force of friction needs the weight applied PERPENDICULAR to the surface. Find this, then you will get your angle.

parallel
 
Mu naught said:
parallel

no. you must have misunderstood.
I meant the angle perp. multiplied by the coeff. of friction will give u your force countering the 35N (which is assumed to be equal). so fill in the blanks to find the angle.
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

A problem from a physics national competition
Replies
13
Views
1K
Push/Pull Force of wheeled cart on an incline
Replies
7
Views
4K
Mass slipping on a moving inclined plane
Replies
5
Views
1K
Inclined Plane Static Friction Coefficient
Replies
11
Views
4K
Compute acceleration on an inclined plane with friction
Replies
5
Views
2K
Inclined Plane Forces - with a twist
Replies
2
Views
1K
Finding the work done by a block
Replies
4
Views
3K
Finding the coefficient of kinetic friction on an incline
Replies
3
Views
4K
How Does Friction Affect Acceleration on an Incline?
Replies
19
Views
3K
Variable friction on an inclined plane and maximum velocity
Replies
33
Views
3K

Hot Threads

Recent Insights

Back
Top