A nail is pulled from a wall with a string tied to the nail. If the string is inclined at an angle of \(30^{\circ}\) to the wall and the tension in the string is \(50 N\), the effective force used in pulling the nail is ____________
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Correct Answer: Option A
Explanation:
Effective force \(=50 \sin \theta\),
\(50 \sin 30^{\circ}=25 N\)
Effective force \(=50 \sin \theta\),
\(50 \sin 30^{\circ}=25 N\)