A weight of 30 pounds is suspended by three wires with resulting tensions 3i + 4j +

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A weight of 30 pounds is suspended by three wires with resulting tensions 3i + 4j + 15k, - 8i - 2j + 10k, and ai + bj + ck. Determine a, b, and c so that the net force is straight up.
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Calculus

ISBN: 978-0131429246

9th edition

Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon

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