8. Centripetal Forces & Gravitation
Period and Frequency in Uniform Circular Motion
Multiple Choice
Multiple ChoiceA 3kg rock spins horizontally at the end of a 2m string at 90 RPM. Calculate its centripetal acceleration.
A
177 m/s2
B
118.4 m/s2
C
3160 m/s2
D
56.5 m/s2
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