A block is placed on a smooth horizontal surface, and forces are applied to it as shown in the diagram. Take \(g\)\(=10\) m/s2. The normal reaction acting on the block is:
   
1. \(100\) N
2. \(60\) N
3. \(40\) N
4. \(20\) N
Subtopic:  Tension & Normal Reaction |
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