Homework Help: physics (vector)

Posted by shwet on Monday, June 6, 2011 at 11:34pm.

the resultant of two vector
A and B pependicular to vector A and its magnitude is equalto half the magnitude of vector b what is the angle between them . How?

physics (vector) - Henry, Tuesday, June 7, 2011 at 2:39pm
Va = F1.

Vb = 2F1.

tanA = Y/X = 2F1/F1 = 2.
A = 63.4 Deg. = Angle between resultant
and Va.

90 - 63.4 = 26.6 Deg. = Angle between
resultant and Vb.

NOTE: Va is parallel to the x-axis and
Vb is parallel to the y-axis.

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