Friction of a sliding mass on a slope

AI Thread Summary
The discussion centers on understanding the friction of a sliding mass on a slope, emphasizing the role of kinetic friction in determining the mass's movement. Participants highlight the importance of calculating the normal force, expressed as N=mg*cos(theta), which is crucial for analyzing static friction. Questions arise about how kinetic friction relates to the normal force and the forces acting on the mass as it slides down the ramp. The necessity of applying free body diagrams is mentioned to visualize the forces at play. Overall, the conversation stresses the need for a solid grasp of these concepts to solve the problem effectively.
raspberrypienjoyer
Messages
2
Reaction score
0
Homework Statement
Under which condition will the sliding stop? Show how you found this condition.
When the sliding stops, what distance will be traveled since t=0?
Relevant Equations
At t=0, its velocity is V0
hw5.png

Could you please help me with this? I guess move of the mass will be determined with kinetic friction.
 
Physics news on Phys.org
What are your thoughts? How does this relate to what you have been studying?

You must make a serious attempt at the problem yourself before we can help.
 
PeroK said:
What are your thoughts? How does this relate to what you have been studying?

You must make a serious attempt at the problem yourself before we can help.
Static friction is N=mg*costheta as far as I know.
 
raspberrypienjoyer said:
Static friction is N=mg*costheta as far as I know.
That's the normal force due to gravity. How is kinetic friction related to that.

Also, have you learned about free body diagrams?
 
What force is sliding it down the ramp and what is that force equal to if the block is stopped?
 
Thread 'Minimum mass of a block'
Here we know that if block B is going to move up or just be at the verge of moving up ##Mg \sin \theta ## will act downwards and maximum static friction will act downwards ## \mu Mg \cos \theta ## Now what im confused by is how will we know " how quickly" block B reaches its maximum static friction value without any numbers, the suggested solution says that when block A is at its maximum extension, then block B will start to move up but with a certain set of values couldn't block A reach...
TL;DR Summary: Find Electric field due to charges between 2 parallel infinite planes using Gauss law at any point Here's the diagram. We have a uniform p (rho) density of charges between 2 infinite planes in the cartesian coordinates system. I used a cube of thickness a that spans from z=-a/2 to z=a/2 as a Gaussian surface, each side of the cube has area A. I know that the field depends only on z since there is translational invariance in x and y directions because the planes are...
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}...
Back
Top