A girl stands at A on a platform which is rotating with angular acceleration and at

A girl stands at A on a platform which is rotating with angular acceleration α and at the instant shown has angular velocity ω .If she walks at constant speed v measured relative to the platform, determine her acceleration

(a) When she reaches point D in going along the path ADC,

(b) When she reaches point B if she follows the path ABC.

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Given: α = 0.2 @ = 0.5 V = 0.75 d = 1 m r = 3 m rad 2 rad S m D B C -y