Q.

A vector A→  of magnitude 53  units, another vector B→  of magnitude of 10units are inclined to each other at an angle of 300 . The magnitude of vector product of the two vectors is:

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a

253units

b

75units

c

53units

d

10units

answer is A.

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Detailed Solution

|A→×B→|=ABsinθ =53×10sin300=53×10×12 =253unit .
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A vector A→  of magnitude 53  units, another vector B→  of magnitude of 10units are inclined to each other at an angle of 300 . The magnitude of vector product of the two vectors is: