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\includegraphics[max width=\textwidth, alt={}, center]{a4cb105b-55d2-4793-95d2-3d791990a1f6-2_341_929_269_609}
Forces of magnitudes 10 N and 8 N act in directions as shown in the diagram.
- Write down in terms of \(\theta\) the component of the resultant of the two forces
(a) parallel to the force of magnitude 10 N ,
(b) perpendicular to the force of magnitude 10 N . - The resultant of the two forces has magnitude 8 N . Show that \(\cos \theta = \frac { 5 } { 8 }\).