help@askiitians.com

+91-87964 74404

Grade 12Vectors

Please help me with the following question, please i am confused about it

Question image for Please help me with the following question, please

Prathamesh kulkarni

8 Years agoGrade 12

1 Answer

Datt

8 Years ago

Here we would use section formulae.

[m(point B) + n(point A)]/m+n = vector a

where m:n = 2:3

so 2*(B) + 3* (a+2b) = 5a

once you solve you get B = a-3b

option C

A body is rotating with an angular velocity of 2radians per second about the line joining (1, 2,3) and (2, 3,5) find the velocity of the particle of the body which is momentarily at (3, 5,6)

vectors

1 Answer Available

Last Activity: 4 Years ago

Show that: vectorPQ+vectorPR+ vectorPS +vectorTP+vectorUP = 4PQ
Vector

vectors

1 Answer Available

Last Activity: 4 Years ago

Given that A×(B×C) = (A.C)B - ( A.B)C , deduce that (A×B)×C = (A.C)B - (B.C)A

vectors

1 Answer Available

Last Activity: 4 Years ago

the mean of 30 observations was 17 with sd2. later it was found that two of the observations were incorrect, which were recorded as 19vand 21.find the correct sd if the incorrect values are deleted and correct values 22 and 15 are included

vectors

1 Answer Available

Last Activity: 4 Years ago

Find the component of 2i +3j +k in the direction of 3i-j

vectors

1 Answer Available

Last Activity: 4 Years ago

View all Questions