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Standard XII

Physics

Average and Instaneous Power

Two wooden bl...

Question

Two wooden block moving on a smooth horizontal surface such that the mass m remains stationary with respect to the block of mass M. The magnitude of force P is

$(M + m) g t a n β$

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$g t a n β$

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$m g c o s β$

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$(M + m) g c o s e c β$

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Solution

The correct option is A
$(M + m) g t a n β$

$a = \frac{P}{M + m} R s i n β = m a R c o s β = m g a = g t a n β P = (M + m) g t a n β$

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Two wooden block moving on a smooth horizontal surface such that the mass m remains stationary with respect to the block of mass M. The magnitude of force P is

The correct option is A (M+m)g tan β a=PM+mRsinβ=maRcosβ=mga=gtanβP=(M+m)gtanβ

The correct option is A
$(M + m) g t a n β$

$a = \frac{P}{M + m} R s i n β = m a R c o s β = m g a = g t a n β P = (M + m) g t a n β$