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Author Question: If a pendulum makes 12 complete swings in 8.0 s, what are its (a) frequency and (b) period? What ... (Read 80 times)

JGIBBSON

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on: Jul 29, 2018
If a pendulum makes 12 complete swings in 8.0 s, what are its (a) frequency and (b) period?
 
  What will be an ideal response?

Question 2

A sewing machine needle moves in simple harmonic motion with a frequency of 2.5 Hz and an amplitude of 1.27 cm.
 
  (a) How long does it take the tip of the needle to move from the highest point to the lowest point in its travel? (b) How long does it take the needle tip to travel a total distance of 11.43 cm?


Carissamariew

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Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 1.5 Hz (b) 0.67 s

Answer to Question 2

(a) 0.20 s (b) 0.90 s


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