How to Solve Inclined Plane Problems

Physics Ninja look at 3 inclined plane problems. 1) Determine the speed at the bottom of the ramp and the time is takes to get to the bottom. 2) Given an initial speed up the ramp find the max distance up the ramp (includes kinetic friction) 3) Find the tension in the rope if the block is in equilibrium.

[lepequedamas]

Great explanation, teacher I was struggling so much with this kind of problems. The result at the end is not correctly evaluated though, it should be T = 19, 67 N

Thank you teacher. For more people like you in the world

[emmanlazo]

I had to refresh before my final exams tomorrow and this was godsend. Thank you so much, I respect you sir deeply.

[eggxecution]

I've been struggling with this for years lol thank you so much! but really to understand this video, I have to self study about angles first 😅

[yusufabdalla]

Best video I've seen explain this. Should have so many more views.

[humphreyipeli]

One month left before national examination, though my teacher explains but didn't understand well, but once I come across this, it's clarifying my doubts

[brunogreco]

Your explanations are excellent thank you very much.

[ibrahimrahman]

guys at 20.56 it was meant to be a + not -. Thats why you get 6.83

[AshleyYelsha]

when you calculate acceleration in the first problem why do you use sin35 x 5.36? ive never learned it that way//used it like that with the sin component to find time...

[rolando]

at 20:01 you wrote (ma = mgsin - umgcos) but on top you have (mgsin + uN = ma), why did it change from addition to subtracting?

[AK_]

Great teaching, but Force is vector quantity and you should stay within the coordinate system you define. Tension should be negative.

[Ninja_Drummer]

Isn't Tension = 19.7N in the last question?

[jaypark]

Kinetic force should be opposite to Wx, right?

[abirdas]

Great explanation sir, keep it up.
Upload more video on physics.

[JosephAMuniz-hmjh]

@ 20:00 How did you go from mgsin(theta) "+" mu_kN = max, then substituted in N, mgcos(theta) to somehow get mgsin(theta) "-" mu_k(mgcos(theta)? How does substituting in N suddenly change the expression to "-"? And if I calculate (9.8)(sin35 "+" 0.15cos(35)) I get 6.83... If I use the negative expression you derived after subbing in the N, I get 4.41 m/s. Not sure what's going on here. Please elaborate?

[nuthanagantichandrakanth]

Bro,
Plz do on thermodynamics and kinetics theory of gases

[donboser]

In problem 2 can you explain why the acceleration is down the incline when you have given an initial velocity upward?

[dv]

Using the relationship between Potential and Kinetic energy and solving for "h". "h" being the altitude necessary for block to gain the velocity 15 m/s. Why is equation h = v^2/2g incorrect when solving X = h/sin(35).

[QueenKapalu]

Thank you at least I have understood a bit

[knowledgeisability]

No, I didn't mean well. What force is applied to the inclined surface? It means that the force enters the inclined surface from behind and the inclined surface moves

[canonarondavidd.]

can I ask.. how to get the angle if you have a mass 100kg, 5m long inclined plane and P.e of 2450J?