Question

Question in attachment

Answer 1

@ybarrap please help :)

Answer 2

@ganeshie8

Answer 3

a)

because there is no component of a to project onto b
b)

because b is the zero vector, the unit vector of b is undefined.
c)

If a and b are perpendicular (as in part a) then the projections of on onto the other is zero.
d)

The projection of b onto c is in the direction of b whose magnitude is dependent on b
but project of a onto this is in the direction of c whose magnitude is dependent on a

and this is equivalent to the following:

The project of a onto c is in the direction of b whose magnitude is dependent on a

Answer 4

@cupcakezz you have been pinging me for assistance which is fine but please make an attempt to solve these prior and make an attempt to understand what the questions are asking you. I will be more inclined to assist if I don't feel like you are just looking for solutions and have no desire to understand this material.