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Chapter 3: Q. 2 (page 77)

Trace the vectors in FIGURE EX3.2 onto your paper. Then find.

(a) A→+B→and (b) A→-B→localid="1649527132367" A→-B→.

Short Answer

Expert verified

(a) A→+B→=A1+B1,A2+B2.

(b) A→-B→=A1-B1,A2-B2

Step by step solution

01

Part (a) Step 1. Given information

The given figure is,

We need to determine,

A→+B→.

02

Step 2. Calculation

The given figure is,

By vector addition,

A→+B→=A1+B1,A2+B2.

03

Part (b) Step 1. Given information

The given figure is,

We need to determine,

A→-B→.

04

Step 2. Calculation

The given figure is,

By vector subtraction,

A→-B→=A1-B1,A2-B2

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