Determine the downward acceleration a of the frame

Reference no: EM131036283

Arm AB of a classifying accelerometer has a weight of 0.25 lb with mass center at G and is pivoted freely to the frame F at A. The torsional spring at A is set to preload the arm with an applied clockwise moment of 2 lb-in. Determine the downward acceleration α of the frame at which the contact at B will separate and break the electrical circuit.

Reference no: EM131036283

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