Physics > 2008 > 5
JAMB UTME
A force F is required to keep a 5kg mass moving round a cycle of radius 3.5m at a speed of 7ms-1. What is the speed, if the force is tripled?
A.
4.0ms-1
B.
6.6ms-1
C.
12.1ms-1
D.
21.0ms-1
Answer: C
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