A) \[\frac{{{w}_{1}}}{s}\]
B) \[\frac{{{w}_{1}}+\frac{w}{4}}{s}\]
C) \[\frac{{{w}_{1}}+\frac{3w}{4}}{s}\]
D) \[\frac{{{w}_{1}}+w}{s}\]
Correct Answer: C
Solution :
Stress on rope \[=\frac{force}{area}\] Stress in the rope will be due to the downward weight. \[\therefore \] Weight of \[\frac{3}{4}th\] of rope \[=\frac{3}{4}w\] Tension in rope \[={{w}_{1}}+\frac{3}{4}w\] \[\therefore \] Stress \[=\frac{{{w}_{1}}+\frac{3}{4}w}{s}\]You need to login to perform this action.
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