Easy -1.2 This is a straightforward application of the work formula W = Fs cos θ with all values given directly. It requires only substitution into a single formula (40 × 100 × cos 35°) with no problem-solving, making it significantly easier than average A-level questions.
1 A man drags a sack at constant speed in a straight line along horizontal ground by means of a rope attached to the sack. The rope makes an angle of \(35 ^ { \circ }\) with the horizontal and the tension in the rope is 40 N . Calculate the work done in moving the sack 100 m .
1 A man drags a sack at constant speed in a straight line along horizontal ground by means of a rope attached to the sack. The rope makes an angle of $35 ^ { \circ }$ with the horizontal and the tension in the rope is 40 N . Calculate the work done in moving the sack 100 m .
\hfill \mbox{\textit{OCR M2 2007 Q1 [3]}}