Theory of Machine
Transmission of power from the engine to the rear axle of an automobile is by means of

Worm and wheel method
Hooke's joint
Crown gear
Compound gears

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Theory of Machine
Hammer blow

Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses.
Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses
Varies as the square root of the speed
Varies inversely with the square of the speed

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