A pulley reverses the direction of the applied force.

2.5 kgf

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5.0 kgf

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Solution

The correct option is A
2.5 kgf

True
The given statement is true as if you want to pull an object up with the help of the rope, the object will rise up but you will have to apply the force downwards.

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Q. Calculate the force to be applied at C to just raise load W= 20 kgf, neglecting weght of the pulley

P_{1}

and friction.

Q. The direction of

20

kgf force is reversed. What is the magnitude of the resultant moment of the forces on the rod?

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A pulley reverses the direction of the applied force.

The correct option is A 2.5 kgf True The given statement is true as if you want to pull an object up with the help of the rope, the object will rise up but you will have to apply the force downwards.

The correct option is A
2.5 kgf

True
The given statement is true as if you want to pull an object up with the help of the rope, the object will rise up but you will have to apply the force downwards.