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A vector A points vertically downward, and another vector B points towards the east. Then, the vector product A×B is

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Important Questions on Motion in a Plane

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Three coplanar vectors AB and C have magnitudes 43 and 2, respectively. If the angle between any two vectors is 120°, then which of the following vectors may be equal to 3A4+B3+C2?

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The magnitude of pairs of displacement vectors is given. Which pairs of displacement vectors cannot be added to give a resultant vector of magnitude 13 cm?
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Consider three vectors,

A=2i^+3j^2k^,

B=5i^+nj^+k^ and 

C=i^+2j^+3k^

If these three vectors are coplanar, then the value of n will be

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For the situation shown below, what will be the magnitude of minimum force (in Newton) that can be applied in y direction so that, the resultant force is along the east direction?

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If A and B are two non-zero vectors such that, |A+B|=|AB|2 and A=2B, then the angle between A and B is 
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A particle is moving with speed 6 m s-1 along the direction of A=2i^+2j^k^. Then its velocity is
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The columnI shows vector diagrams relating three vectors ab and c. Match the vector equations in the columnII, with vector diagrams in the columnI.

  ColumnI   ColumnII
A Question Image p a(b+c)=0
B Question Image q bc=a
C Question Image r a+b=c
D Question Image s a+b=c
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If |a|=32 and |b|=62, then x-component of a+b is

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