Question

Five vectors `vecA, vecB, vecC,vecD` and `vecE` have magnitude `10, 12 sqrt(2), 20, 20` and 10 unit respectively, they are direacted as shown in the fig. 3.58

Answer the following questions :

Answer 1

Correct Answer - B
`vecA = 10hati," "vecB= 12 hati +12 hatj`
`vecC = - sqrt(3) 10hati + 10 hatj" ", " " vecp= 10hati-10sqrt(3) hatj`
`vecD = -10hatj`
`(vecA + vecB +vecC +vecD + vecE)=(11-10sqrt(3)) hati + (12-10sqrt(3))hatj`
x component = `12-10sqrt(3)`
y component = `12-10sqrt(3)`