Theory of Machine
For simple harmonic motion of the of follower, a cosine curve represents

All of these
Velocity diagram
Displacement diagram
Acceleration diagram

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Theory of Machine
Cam angle is defined as the angle

Through which, the cam rotates during the period in which the follower remains in the highest position
Moved by the cam from the instant the follower begins to rise, till it reaches its highest position
Of rotation of the cam for a definite displacement of the follower
During which the follower returns to its initial position

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