# Tag Info

Accepted

### How does a guitar string produce sound?

The string vibrates, creating a pressure wave around it with the same frequencies as the ones it's vibrating with, these waves go into the sound hole, and then what? That's not correct. The string is ...
• 12.3k
1 vote

### Confusion in conservation of momentum

Remember that the vector sum of bodies' momenta is conserved provided that no forces act on the bodies except forces between the bodies themselves. If the masses are the bodies in your system (and the ...
• 35.9k
1 vote
Accepted

### What are the acting forces in the tug of war problem?

In the game of tug and war all the forces between persons 1 and 2 and the rope are internal forces, being equal and opposite per Newton's third. Call all these force $F$. See FIG 1. But the internal ...
• 72.5k
1 vote

### What are the acting forces in the tug of war problem?

If there is no friction between the surface and the person, pulling the rope will simply cause the person to accelerate forward. If two persons are pulling the rope, The two people will accelerate ...
• 379

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