Circular Motion Flashcards
1
Q
Why does the speed remain constant when swinging a bung
A
Resultant F = 90 degrees to motion ∴ no Work is done
2
Q
Describe the bung experiment -.-
A
- rotate bung at constant radius / try keep reference mark at end of tube
- F = Mg
- Measure t for 20 rev ∴ find T
- “ r when stationary
- v = eqt
3
Q
When do you feel weightless
A
At top of the circle
when W= the required centripetal F
