Theory of Machine
The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose)

ω² × OQ sinθ
ω² × OQ cosθ
ω² × OQ tanθ
ω² × OQ

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Theory of Machine
The contact ratio is given by

(Length of the arc of approach)/cosφ
(Length of the path of approach)/(Circular pitch)
(Length of the arc of contact)/(Circular pitch)
(Length of path of recess)/(Circular pitch)

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Theory of Machine
A motor car moving at a certain speed takes a left turn in a curved path. If the engine rotates in the same direction as that of wheels, men due to centrifugal force

The reaction on the outer wheels increases and on the inner wheels decreases
The reaction on me inner wheels increases and on the outer wheels decreases
The reaction on the rear wheels increases and on the front wheels decreases
The reaction on the front wheels increases and on the rear wheels decreases

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