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A steel cable with a radius of 1.5 cm supports a chair lift at a ski area. If the maximum stress is not exceed 108 Nm-2, What is the maximum load the cable can support? |
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Answer» r = radius of cable = 1.5 cm. = π(0.015)2 m2 max stress = 108 Nm-2 Let F be the maximum force. stress = \(\frac{F}{A}\) ∴ F = max stress × area. = 108 × π × (0.015)2 = 7.065 × 104N = 70,650 N ∴ The maximum load is 70,650 N. |
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