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The hour hand on a clock points to 7. If the vector represented by the hour hand has a magnitude of 5 inches, what is the magnitude of its horizontal component? 

 Mar 9, 2020

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 #1
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7 oclock     is     an angle of  240o

 

  ( each hour represents 30 degrees     360/12 = 30 degrees        6 oclock is 270 o)

 

The horizontal component is   5  cos 240 = -2.5      magnitude = 2.5 ' inches '

 Mar 9, 2020
 #1
avatar+26006 
+2
Best Answer

7 oclock     is     an angle of  240o

 

  ( each hour represents 30 degrees     360/12 = 30 degrees        6 oclock is 270 o)

 

The horizontal component is   5  cos 240 = -2.5      magnitude = 2.5 ' inches '

ElectricPavlov Mar 9, 2020

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