14. X and Y-components of a vector are 25 unit and 60 unit respectively. Find the magnitude and direction of vector.
15. If vector à = î - 2ġ, B = 2î + 3k and C = i + ſ then
find component of A + B along : (i) X-axis and (ii)
vector ?
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Answer:
Explanation:
14.
Magntude = Root ( 25 ) sq + 60 sq
= √ 625 + 3600
= Root 4125
= solve it by calc
direction tan theta = 60/25
= 12/5
hence theta is tan inverse (12/5)
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