Recent content by LogU16

Ok Sir. I just try to answer, If you find any mistake in my explanation, please correct me here; 1) A small stone attached to a string moving in a circle >>> centripetal force is the tension force that string applies over the stone. 2) Rotation of Earth around the sun >>> centripetal force is...

Thanks, Sir @rcgldr. I request you to please tell me the cause of centripetal force in examples 2,3 and 4 too.

@russ_watters Sir, I have read the examples but I am unable to differentiate where we apply this force by our hands. The examples which I'm confused about are; 1) A small stone attached to a string moving in a circle 2) Rotation of Earth around the sun 3) movement of a car in a circle on the...

Thank you Sir, could you give me one or two examples in which we apply this force by our hands?

@russ_watters Sir, I mean to say; Do we apply centripetal force by our hands Or is it generated by itself? What is the cause for this force?

Hello, teachers. Do we apply centripetal force ourselves Or is it created by some other source? What is the source? How is it created? I could not find the answer, I'm confused, please help me clarify this. Many many thanks.

When mass goes to mean position from extreme position, its velocity increases When mass goes to extreme position, ts velocity decreases. Could you please explain it to me why is it so?

Thanks, Nugatory. When spring is stretched towards right, the force (restoring force) will be towards the left. When spring is compressed towards left, the force (restoring force) will be towards the right. What will be the direction of acceleration in both cases?

Thanks. Could you please explain why does acceleration act always in the opposite direction to displacement in the case of horizontal mass-spring system? Why not they act in the same direction? I'm unable to understand your previous reply (post#4), kindly make it easier for me to grasp it...

Thanks. CoE??

Could you please explain it to me why has we given this name (simple harmonic motion) to this oscillatory motion? and how does acceleration act in an opposite direction to the displacement? Thanks a lot!

Hello there! I have a simple question; Why simple harmonic motion is called simple harmonic motion? What's the origin of this name? I could not find the answer despite browsing so many websites on the internet. Could anybody tell me the answer? Thanks in advance.

Thanks for this pic, Berkeman. Could you please explain it a bit? it will be a great help.

Hello, Respected teachers. Why wheel+axle combination is used? Why can we not only use the wheel? I'm confused about this, please explain it to me the reason. And one more question; please give me an example of daily life in which we apply force on axle to turn the wheel. Many many thanks.

Hello, members Why rolling friction is extremely small than sliding friction? Could somebody explain this to me by an example? Your help would be appreciated. Thanks a lot.