Thursday, June 30, 2011

Example 3 (By Tan Jing Heng, Wee Ren Chang, Daniel Pei

(a) Speed = Distance/Time
= «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mfrac»«mrow»«mn»0«/mn»«mo».«/mo»«mn»9«/mn»«mi»m«/mi»«/mrow»«mrow»«mn»1«/mn»«mo».«/mo»«mn»69«/mn»«mo»$nbsp;«/mo»«mi»s«/mi»«/mrow»«/mfrac»«/math»
= 0.533m/s (to 3sf)

(b) Yes, this is possible, by changing the tension. When the tension is lowered, the waves will decrease in speed as well.

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