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What is the power required to push the w...

What is the power required to push the woodn wedge horizontally with constant speed `v_(0)` to raise the heavy block M, as shown in the figure. All surfaces are frictionless.

Text Solution

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Since the wedge moves with uniform velocity, therefore, it is in equilibrium
`:.N cos theta= Mg`
and `N sin theta = F`
thus, `F=Mg tan theta `
The required power is `P=Fv_(0)=Mgv_(0)tan theta`
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