Resultant forces and dynamics in a planeEdexcel A-Level Maths: Mind map

Exam questions on Resultant forces and dynamics in a plane

1. Two horizontal forces act on a particle: a force of 8 N acting due east and a force of 6 N acting due north.
   These are the only forces on a particle of mass 4 kg, initially at rest. Find the speed of the particle after 3 s.2 marks
2. Two horizontal forces act on a particle: a force of 12 N on a bearing of $060^\circ$ and a force of 5 N on a bearing of $150^\circ$.
   A third horizontal force $\mathbf{F}$ is applied so that the particle is in equilibrium. State the magnitude of $\mathbf{F}$ and the bearing on which it acts.2 marks
3. Two horizontal forces of magnitudes 20 N and 15 N act on a particle of mass 3 kg, which moves on a smooth horizontal plane. The angle between the lines of action of the two forces is $60^\circ$.
   Find the magnitude of the resultant of the two forces.3 marks