34 Answered Questions for the topic newtonian mechanics

Newtonian Mechanics Physics Forces Potential Energy

07/11/19

Bounce of a ping pong ball vs bounce of other things (How does the material affect ?)?
Yesterday I saw that a ping pong ball bounced nicely on a hard surface but poorly on a mattress.On the contrary ,I saw that other things (a pen for example) bounced poorly on a hard surface but... more
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Newtonian Mechanics Physics Forces Momentum

05/06/19

Why does a billiard ball stop when it hits another billiard ball head on?
(*I'm repeating myself a lot here, but it's because I want to make my confusion clear.*) If 2 billiard balls are the same exact mass, and one hits another stationary one head on, I have heard that... more
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Newtonian Mechanics Physics Forces Electromagnetism

04/14/19

How can I stand on the ground? EM or/and Pauli?
There is this famous example about the order difference between gravitational force and EM force. All the gravitational force of Earth is just countered by the electromagnetic force between the... more
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Newtonian Mechanics Physics Forces Free Body Diagram

04/13/19

With Newton's third law, why are things capable of moving?
I've got a rather humiliating question considering newton's third law "If an object A exterts a force on object B, then object B exerts an equal but opposite force on object A" ->... more
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Newtonian Mechanics Physics Forces Mass

04/13/19

Are Newton's "laws" of motion laws or definitions of force and mass?
If you consider [them](http://en.wikipedia.org/wiki/Newton%27s_laws_of_motion) as laws, then there must be independent definitions of [force](http://en.wikipedia.org/wiki/Force) and... more
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Newtonian Mechanics Physics Forces Friction

04/13/19

Why do ballpoint pens write better on pages that have pages below them?
If I write on the starting page of a notebook, it will write well. But when there are few or no pages below the page where I am writing, the pen will not write well. Why does this happen?
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Newtonian Mechanics Physics Forces Newtonian Gravity

04/12/19

Does juggling balls reduce the total weight of the juggler and balls?
A friend offered me a brain teaser to which the solution involves a $195$ pound man juggling two $3$-pound balls to traverse a bridge having a maximum capacity of only $200$ pounds. He explained... more
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Newtonian Mechanics Physics Gravity Forces

03/16/19

Why is the Moon considered the major cause of tides, even though it is weaker than the Sun?
You have likely read in books that tides are mainly caused by the Moon. When the Moon is high in the sky, it *pulls* the water on the Earth upward and a high-tide happens. There is some similar... more
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Newtonian Mechanics Physics Forces Conservation Laws

03/14/19

Why does Newton's Third Law actually work?
My father explained to me how rockets work, and he told me Newton's Third Law of motion worked here. I asked him why it works and he didn't answer. I have wasted over a week thinking about this... more
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