Two forces of magnitude $5.0\,\text{N}$ and $12\,\text{N}$ act from the same point on an object. Calculate the magnitude of the resultant force $R$ when the forces are in opposite directions.
Two forces of magnitude $5.0\,\text{N}$ and $12\,\text{N}$ act from the same point on an object. Calculate the magnitude of the resultant force $R$ when the forces act at right angles to each other.
Object $X$ is at rest on a smooth horizontal surface. As shown in Fig. $1.1$, two horizontal forces act on $X$. One force of $55\,\text{N}$ acts to the right. A further force of $18\,\text{N}$ acts at an angle of $115^{\circ}$ to the direction of the $55\,\text{N}$ force.
Use force resolution or a scale diagram to show that the resultant force acting on $X$ has magnitude $65\,\text{N}$.
Find the angle between the resultant force and the $55\,\text{N}$ force.
A third force of $80\,\text{N}$ is now applied to $X$ in the direction opposite to the resultant force in (b). The mass of $X$ is $2.7\,\text{kg}$. Calculate the magnitude of the acceleration of $X$.