Question

an ideal pendulum oscillates in vacuum between two extreme positions A and B.
If it goes from position A to position B and then returns from position B to mean position C in 3 s, then it will complete 3.5 oscillations in what time.
PLZZ HELP!

Answer 1

heyy....
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A to B to C=3s
A to B = 3÷1/3*2=2s

1 oscillation takes 2sec
then,3.5 oscillation = 2*3.5 = 7 sec
so, it will complete 3.5 oscillations in 7 seconds.
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