Application of Newton's Laws of Motion on the Double Inclined Plane Surface System

This video is a lecture on the application of three laws of Newton to the double inclined plane surface system. Viewers are encourage to review the three laws of Newton, the principle of friction, and construction of free-body diagram (FBD) before going to watch this video.

[@AlexJoseph-oz6kz]

Was so good,much appreciated 👏

[@eatyourfuckingcereal9362]

26:10 was so enlightening, this one small note was the thing that kept me failing to do this type of exercise, thank you!

[@henrytzuo8517]

THANK YOU SIR, very well exlpained!!

[@tmc_ongod_8248]

This video video was extremely helpful! I spent about an hour and a half trying to figure out a similar problem. I now see my my mistakes. Thank u once a again!

[@sirsacephysics6614]

Glad it helped!

[@LarissaMoncrief]

Thank you for explaining everything so clearly!

[@ambrose0]

Excellently well explained!

[@ALLERGONZALEZEnrique]

There is a mistake in the calculation of the tension. The gravity acceleration is missing in the calculation of the friction force. The result is 420,65 N.

[@yoel8036]

Very Helpful review thanks!

[@sirsacephysics6614]

Thanks for watching!

[@24fashionchick]

Sir what if the friction coefficient that was given is 0.12 and solving for the acceleration in either direction results in negative? (left direction is -0.26m/s^2 and right direction is -1.69m/s^2) what does that mean?

[@sirsacephysics6614]

Reverse the direction of friction, hen recompute. Thanks for watching.

[@slasher9410]

Question: is there still a normal force acting on an object even with a frictionless surface?

[@sirsacephysics6614]

Yes... if there's contact between object there's always normal force.

[@muza9335]

Sir what book are you using?

[@sirsacephysics6614]

I'm using University physics by young and freedman.