2. The body in the figure is originally at rest. Then four external forces were simultaneously applied causing a resultant force of 100N inclined 20° with the negative x- axis. If the mass of the...

Dynamics: Energy Relation of Particles and Rigid Bodies

Extracted text: 2. The body in the figure is originally at rest. Then four external forces were simultaneously applied causing a resultant force of 100N inclined 20° with the negative x- axis. If the mass of the particle is 120 kg., compute the following: (a) The particle's acceleration (b) What is the work done on the particle after 5 sec? (c) What is the total energy after this period? Fs Point of Contune ney System of concurent farces acting on a body