Forces F1 = (3N, 210o) and F2 = (4N, 120o) act on a particle of mass 7kg which is at rest.
Calculate the:
acceleration of the particle;
11velocity of the particle after 3 seconds.
F1 = (2i + 3j)N, F2 = (-5j)N and F3 = (6i – 4j)N act on a body. Find the magnitude and direction of the fourth force that will keep the body in equilibrium.
Candidates’ response to this question was also reported to be very poor. Poor knowledge of vectors was very evident in their responses. Teachers were encouraged to do more work in this area. As it was the case in Question 16, candidates were also expected to represent the vectors on a diagram.
