Maths Help - Sine & Cosine Rules?

Science & Mathematics by Anonymous 2018-09-18 08:15:12

Social Science

Maths Help - Sine & Cosine Rules?

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A crank mechanism of a petrol engine is shown below. Arm OA is 10.0cm long and rotates clockwise about O. The connecting rod AB is 30.0cm long and end B is constrained to move horizontally For the position shown in the diagram determine the angle between the connecting rod AB and the horizontal length of OB