Question

A body of mass 5 kg is acted upon by two perpendicular forces of magnitude 8n and 6n find magnitude and directions of acceleration

Answer 1

Magnitude of force =
$\sqrt{ {8}^{2} + {6}^{2} } = 10n$
Magnitude of acceleration =2m/s^2
Direction of acceleration tan^-1(4/3) angle towards direction of 8n force measured from direction of 6n force.