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6 votes
1 answer
193 views

How does $g$-force relate to time dilation?

1 vote
4 answers
46 views

Does the existence of exchange particles imply that that the 4 fundamental forces are delivered in discrete packets instead of continuously?

2 votes
2 answers
167 views

Newton's 3rd law of motion

2 votes
2 answers
48 views

Doubts about direction of normal contact force acting on a tilted rod supported by another body

0 votes
0 answers
6 views

Should the magnetic force on the edge of iron bar B attached to a magnet A with lenght of B - L beign calculated with relatve permeability constant

0 votes
3 answers
49 views

Force of an accelerating ball?

1 vote
3 answers
254 views

Acceleration of free fall at different parts of Earth

11 votes
3 answers
290 views

Is friction required for knots (not hitches or bends) to hold fast to a rope?

2 votes
5 answers
60 views

How does a sliding object stop moving by the effect of kinetic friction, if kinetic friction is constant and Fk can't be greater than Fapp on its own

0 votes
2 answers
95 views

How does the strength of dark energy compare to the strength of the other forces?

2 votes
1 answer
28 views

What is the work done by friction on a body from the perspective of different observers using the formula $-μmgl$?

6 votes
2 answers
6k views

Is a chain REALLY only as strong as its weakest link

0 votes
2 answers
1k views

Would a car tow rope withhold an adult person?

2 votes
1 answer
291 views

Capstan equation with only one end of rope under tension

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