Fig. 3.1 shows a small brick suspended from a newton meter. The newton meter reading is $3.0\,\text{N}$.
(a)[1]
Explain how the newton meter reading is used to work out the mass of the brick.
(b(i))[1]
State the principle of moments for an object in equilibrium.
(b(ii))[2]
Find the reading on the newton meter in Fig. 3.2.
(c)[2]
Suggest why the newton meter reading is smaller than your answer in (b)(ii).
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Meter reading ÷ g = mass (gravitational field strength / acceleration due to gravity)” …