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Grade: 12

                        

Two vectors a and b have magnitudes 8 units and 12 units respectively their resultant is perpendicular to a find the angle between two vectors

2 years ago

Answers : (1)

ManpreetK
32 Points
							α=angle between  resultant and vector of  8 magnitude. tanα=Bsinβ \ A+Bcosβ tan 90 = 12 sinβ \8 + 12cosβ1/tan90 =8+12cos β \8sinβ cot90 = 0So, 8 +12cos β=0 cos β = -8/12β= 131.81
						
2 years ago
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