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A man is crossing a roof that is inclined at an angle of 30 above the horizontal

ID: 1350433 • Letter: A

Question

A man is crossing a roof that is inclined at an angle of 30 above the horizontal. His path takes him parallel to the roof ridge but 4.0 m (along the roof surface) below the peak. He is supported by two ropes, one attached to an object above each end of the roof. The left rope is attached to a chimney at 1.0 m above the peak of the roof; the right rope is attached to a flagpole at 3.0 m above the peak of the roof. The chimney rope runs parallel to the roof surface, but the flagpole rope does not. Both ropes reach the man at waist level. The man is halfway across the 10-m-wide roof.

Which of these forces have components in the direction normal to the roof surface?

Check all that apply.

Check all that apply.

Tensile force exerted by the left rope Gravitational force exerted by Earth Tensile force exerted by the right rope Normal force excerted by the roof Force of static friction exerted by the roof

Explanation / Answer

Tensile force exerted by the right rope . this would be only answer

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