Two vectors are given by A= 1.5i+6.6j and B= 7.0i+6.2j. Find (1) (A+B)*B and (2) the...

Two vectors are given by A= 1.5i+6.6j and B= 7.0i+6.2j. Find (1) (A+B)*B and (2) the component of A along the direction of B?

Expert Solution

Given A=1.5i+6.6j and B=7i+6.2j

1)(A+B)*B=(1.5i+6.6j+7i+6.2j)*7i+6.2j

=(8.5i+12.8j)*7i+6.2j

=(8.5*7)+(12.8*6.2)

= 138.86

2) A along the direction of B is

=(1.5i+6.6j).(7i+6.2j)/9.35

=51.42/9.35

=5.499

genius_generous answered 2 months ago

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