Question
Asked Dec 16, 2019
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(a) Suppose the displacement of an object is related to time
according to the expression x = Bt2. What are the dimensions
of B? (b) A displacement is related to time as x= A sin (2πft),
where A and f are constants. Find the dimensions of A. Hint:
A trigonometric function appearing in an equation must be
dimensionless.

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(a) The dimension of B given...

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x = Bt² [L]=[dimension of B][T°] [L] [T] =[LT ] [dimension of B]= The SI unit ofB is m·s².

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