Best physics channel I found! You have the most neat and clear presentation of stuff I've ever seen. Ty so much for your work. I learned a lot from you.
two questions, how can the two forces F_f cancel out, they act on two different bodies, wouldn't they have to act on the same body to cancel out? and if F_f acting on the 1 kg mass really cancels out, which force is accelerating it?
(Newton's 2nd law: the acceleration of a system equals the net force on the system divided by the mass of the system.)The two frictional forces only cancel out if you have the system include both objects. Then there are two frictional forces that cancel out. If your system is only the top block, then there is only 1 force of friction acting on the top block and it acts toward the right.
A normal force is due to one object's surface pushing on another object's surface. In introductory physics most of the time the normal force is from the surface of the ground pushing up on the surface of an object. But in this case, the surfaces are interacting, with two normal forces. One normal force toward the left that is acting on the 2 kg and one of normal force on the 3kg acting toward the right. I count 8 different normal forces for this entire set up.
Your videos are very nice but try to cover more type of problems on inclined plane,pulleys,spring Forces,elevators . Also increase the difficulty of problems
You are amazing. I am so glad I found your channel! That's so cool that you decided to make videos on mechanics. Thank's a lot!
You're back......
Why is this entire video upside down?
Sir you are uploading videos since 10 years
Hats off to you, your videos helps a lot
Best physics channel I found! You have the most neat and clear presentation of stuff I've ever seen. Ty so much for your work. I learned a lot from you.
two questions, how can the two forces F_f cancel out, they act on two different bodies, wouldn't they have to act on the same body to cancel out? and if F_f acting on the 1 kg mass really cancels out, which force is accelerating it?
(Newton's 2nd law: the acceleration of a system equals the net force on the system divided by the mass of the system.)The two frictional forces only cancel out if you have the system include both objects. Then there are two frictional forces that cancel out. If your system is only the top block, then there is only 1 force of friction acting on the top block and it acts toward the right.
Thank you so much for all these free and easy to understand lessons
Great
8:43 why the 3kg push the 2kg to the left and resulted a normal force? im sorry i dont get that part sir
A normal force is due to one object's surface pushing on another object's surface. In introductory physics most of the time the normal force is from the surface of the ground pushing up on the surface of an object. But in this case, the surfaces are interacting, with two normal forces. One normal force toward the left that is acting on the 2 kg and one of normal force on the 3kg acting toward the right. I count 8 different normal forces for this entire set up.
@@lasseviren1 i understand now, thank you for the explanation
Your videos are very nice but try to cover more type of problems on inclined plane,pulleys,spring Forces,elevators . Also increase the difficulty of problems
you are a literal life saver. bless your existence sir.
Thanks so much. You're awesome!
Its my first time to be the first viewer of your video♥
i love you
thank you
When you accidentally write 9.81 m/s^2 instead of -9.81 m/s^2
Your still alive?