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What is the mechanical advantage of an inclined plane as a machine when inclination of the plane is `30^(@)` with the horizontal , if the force acts (i) horizontally,(ii) along the plane ? What force along the plane is needed to raise a scooter of weight 150 kg ?

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The correct Answer is:
`sqrt()3` 2 , 75 kg
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NN GHOSH-MOMENT, TORQUE, EQUILIBRIUM OF BODIES-Exercises
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  7. In the system shown in Figure 6.13 P and Q are in equilibrium . If P i...

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  13. A pulley arrangement is shown in figure 6.14 .A has a diameter of 30 c...

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