[better] - Physics Problems With Solutions Mechanics For Olympiads And Contests Link

ẏc=−L2sinθ⋅θ̇=−L2ωsinθy dot sub c equals negative the fraction with numerator cap L and denominator 2 end-fraction sine theta center dot theta dot equals negative the fraction with numerator cap L and denominator 2 end-fraction omega sine theta Step 2: Conservation of Mechanical Energy

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We transform our analysis into the non-inertial reference frame of the accelerating V-groove. In this frame, an effective fictitious force −ma0negative m a sub 0