An adventurer of weight 680 N is sitting on a bench with their feet resting on the ground. The adventurer experiences an upward force from the ground of 150 N and an upward force from the bench of 530 N.
What is the resultant force on the adventurer?
0 N0\text{ N}0 N
380 N380\text{ N}380 N
680 N680\text{ N}680 N
1210 N1210\text{ N}1210 N
245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.