5 A woman is pulling a loaded sledge along horizontal ground. The only resistance to motion of the sledge is due to friction between it and the ground.
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\caption{Fig. 5}
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At first, she pulls with a force of 100 N inclined at \(32 ^ { \circ }\) to the horizontal, as shown in Fig.5, but the sledge does not move.
- Determine the frictional force between the ground and the sledge.
Give your answer correct to 3 significant figures.
- Next she pulls with a force of 100 N inclined at a smaller angle to the horizontal. The sledge still does not move.
Compare the frictional force in this new situation with that in part (a), justifying your answer.