In this lesson, we will learn how to find the projection of a vector onto another.

Q1:

The cube shown has sides of length 4417. Find the scalar projection of 𝑂𝐴 onto 𝐶𝐵, giving your answer correct to two decimal places.

Q2:

𝐴𝐵𝐶 is a right triangle at 𝐵, where 𝐴𝐵=17cm, 𝐵𝐶=11cm, and 𝐷 is the midpoint of 𝐴𝐶. Find the algebraic projection of 𝐴𝐷 in the direction of 𝐶𝐵.

Q3:

Given that ||=12A, ||=27B, and the measure of the angle between A and B is 60∘, determine the algebraic projection of (+)AB in the direction of ⃑𝐵.

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