These videos are fantastic. I'm an AP physics 1 teacher and I recommend this channel to my students all the time! The way you work through the problems, present questions and then answer, it's all user friendly and fantastic. Thank you so much for making such a wonderful resource.
You are very welcome. It makes me happy to know you find my work useful for your students' learning. Also, honestly, I need all the help I can get. I list ways you can help here: www.flippingphysics.com/help-out.html
Billy I pray you keep contributing as much as you are doing to the STEM community. Love how open source we've become with knowledge today, just makes me happy to think about the potential of the future.
+Flipping Physics again thank you mr p your videos are really helpful to me I think you are explain very good and begin with very simple question and end with hard question you really pick mix questions the are not the same if the are the same every one use pattern ......
Please write the complete mathematical theorem related to demand driven input output theorem and supply driven input output theorem related to energy shortages impact on Pakistan's economy, I need theorem on this topic, can you provide me?
Jesus Baba This is when the spring is pushing the block towards the incline. It is converting potential energy into kinetic energy. therefore potential energy is decreasing that’s why it is negative. Work equals the change in kinetic energy however that equals the change in potential energy which is conserved.
Work done by any conservative force equals the negative change in potential energy associated with that force. When a conservative force does work on an object, the energy must come from its potential energy. When a conservative force has work done on it (i.e. negative work), the work must go in to the object's potential energy. Potential energy is a shortcut for the work done by a conservative force.
Mr. Billy, to be honest, this question is too complicated. 1:07 You already mentioned that Wnet = delta KE => Net work equals the change of kinetic energy. Net Work is done by net force. On the incline the net force is Friction + x component of gravity. So we have 1/2kx^2 = (umgcos25 + mgsin25) *d.
The net force is not constant throughout this problem. Billy is separating it by section, where each section has a different calculation for the net force. In the first section on the spring, the net force equals the spring force acting with its motion (gravity and normal force add up to zero). In the second section, the net force is the lateral component of gravity plus the friction, acting opposite its motion. Normal force and the perpendicular component of gravity add up to zero and do no net work.
These videos are fantastic. I'm an AP physics 1 teacher and I recommend this channel to my students all the time! The way you work through the problems, present questions and then answer, it's all user friendly and fantastic. Thank you so much for making such a wonderful resource.
You are very welcome. It makes me happy to know you find my work useful for your students' learning. Also, honestly, I need all the help I can get. I list ways you can help here: www.flippingphysics.com/help-out.html
Billy I pray you keep contributing as much as you are doing to the STEM community. Love how open source we've become with knowledge today, just makes me happy to think about the potential of the future.
I appreciate your kind words!
I hope Billy is not getting too frustrated by doing the same problem this many times because this is really helpful!
Billy loves it!
I never thought I would hear Billy be slightly exasperated by requests to do extra work and show off his mad skillz!
I'm more than two years late, but thank you SO MUCH for these videos!
I gladly accept your thank you for these videos.
(Currently setting a notification on my phone so I can say "You are welcome!" two years from today.)
You are welcome!
@@FlippingPhysics The madman...
Really great example thanks!
thank you mr.P you are awesome
You are very welcome
you're really helpful thanks
+GEITH ABDUL MAJID You are welcome!
So complicated but the other two way for solve this problem was very easy and simple mr belly
+Gholam Mustafa Ali Very true, this way is more complicated. I thought it would be good to see three different way to solve the problem.
+Flipping Physics again thank you mr p your videos are really helpful to me I think you are explain very good and begin with very simple question and end with hard question you really pick mix questions the are not the same if the are the same every one use pattern ......
thank you
Please write the complete mathematical theorem related to demand driven input output theorem and supply driven input output theorem related to energy shortages impact on Pakistan's economy, I need theorem on this topic, can you provide me?
I don't understand Work(spring) = -ΔPE . Have we learned this yet?
Jesus Baba This is when the spring is pushing the block towards the incline. It is converting potential energy into kinetic energy. therefore potential energy is decreasing that’s why it is negative. Work equals the change in kinetic energy however that equals the change in potential energy which is conserved.
Work done by any conservative force equals the negative change in potential energy associated with that force. When a conservative force does work on an object, the energy must come from its potential energy. When a conservative force has work done on it (i.e. negative work), the work must go in to the object's potential energy. Potential energy is a shortcut for the work done by a conservative force.
♥️♥️♥️♥️♥️
Nice job Nerd!!!
Nerds rule the world!
Mr. Billy, to be honest, this question is too complicated. 1:07 You already mentioned that Wnet = delta KE => Net work equals the change of kinetic energy. Net Work is done by net force. On the incline the net force is Friction + x component of gravity. So we have 1/2kx^2 = (umgcos25 + mgsin25) *d.
The net force is not constant throughout this problem. Billy is separating it by section, where each section has a different calculation for the net force. In the first section on the spring, the net force equals the spring force acting with its motion (gravity and normal force add up to zero). In the second section, the net force is the lateral component of gravity plus the friction, acting opposite its motion. Normal force and the perpendicular component of gravity add up to zero and do no net work.