Exam-Style Problem
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Nov 2003 p4 q3
3619
A crate of mass 3 kg is pulled at constant speed along a horizontal floor. The pulling force has magnitude 25 N and acts at an angle of 15° to the horizontal, as shown in the diagram. Find
- the work done by the pulling force in moving the crate a distance of 2 m,
- the normal component of the contact force on the crate.
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