Easy -1.2 This is a straightforward one-step mechanics problem requiring only the application of Newton's first law (constant speed means zero acceleration, so forces balance) and the friction formula μR = F. With horizontal motion, R = mg is immediate, making this simpler than average A-level questions which typically require multiple steps or conceptual insight.
1 A crate of mass 500 kg is being pulled along rough horizontal ground by a horizontal rope attached to a winch. The winch produces a constant pulling force of 2500 N and the crate is moving at constant speed. Find the coefficient of friction between the crate and the ground.
1 A crate of mass 500 kg is being pulled along rough horizontal ground by a horizontal rope attached to a winch. The winch produces a constant pulling force of 2500 N and the crate is moving at constant speed. Find the coefficient of friction between the crate and the ground.\\
\hfill \mbox{\textit{CAIE M1 2019 Q1 [3]}}