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Three vectors act at a point .O. as show...

Three vectors act at a point .O. as shown in figure. For given value of P and Q the correct optiion are:

A

The resultant is a null vector if `theta = 0, bar(P) = 10 sqrt2N`

B

The resultant is 10N if `theta = 90^(@) and bar(P) = 10N`

C

The resultant is `(30 hat(i)) N, " if " theta = (3pi)/(2)P = 10N` in magnitude

D

For value P= 10N, `theta = 30^(@)` the resultant is a null vector

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The correct Answer is:
B, C
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