Easy -1.2 This is a straightforward application of the power formula P = Fv with constant velocity (so F = mg). It requires only direct substitution into a single formula with no problem-solving or multi-step reasoning, making it easier than average but not trivial since students must recognize the constant speed condition.
A crane is lifting a load of 1250 kg vertically at a constant speed \(V\) m s\(^{-1}\). Given that the power of the crane is a constant 20 kW, find the value of \(V\). [2]
A crane is lifting a load of 1250 kg vertically at a constant speed $V$ m s$^{-1}$. Given that the power of the crane is a constant 20 kW, find the value of $V$. [2]
\hfill \mbox{\textit{CAIE M1 2019 Q1 [2]}}