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The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x.

How many seconds are required for the pendulum to move from its resting position and return?

 

 Jan 23, 2019
 #1
avatar+107405 
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At  t = 0.5 seconds.....the pendulum is at its resting position

 

At  1 sec ...it is at its max displacement to the right

 

At  1.5 sec...it returns to its resting position

 

So ...  1.5 - 0. 5 =      1 second is required

 

 

cool cool  cool

 Jan 23, 2019
edited by CPhill  Jan 23, 2019
edited by CPhill  Jan 23, 2019

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