Additional Mathematics
...
...
...
...
...
...
...
...
...
...
(a) We use unit vectors, taking i along the horizontal direction and j the vertical direction as shown in Fig. 23.12. Fig. 23.12 ...
Example 3 Forces of magnitudes 1 N, 2 N, 3 N, 4 Nand 5 N act along the lines OA, OB, OC, OD and OE respectively, where OABCDE is ...
...
...
4 Two forces P Nand Q N include an angle of 120° and their resultant is {19 N. If the included angle between the forces were 60° ...
...
...
...
...
...
«
21
22
23
24
25
26
27
28
29
30
»
Free download pdf
