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Let two non-collinear unit vectors  and  from and acute angle. A point  moves so that at any time  the position vector  (where  is the origin) is given by . When  is farthest form origin , let  be the length of  and   be the unit vector along   Then,

a)

b)

c)

d)



Question ID - 54030 | SaraNextGen Top Answer

Let two non-collinear unit vectors  and  from and acute angle. A point  moves so that at any time  the position vector  (where  is the origin) is given by . When  is farthest form origin , let  be the length of  and   be the unit vector along   Then,

a)

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

Given,

127 votes


127