## Theory of Machine The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement)

(r₁ + r₂) [(1 - cosθ)/cosθ]
(r₁ - r₂) [(1 - cosθ)/cosθ]
(r₁ - r₂) (1 - cosθ)
(r₁ + r₂) (1 + cosθ)

W CE / 2CS
W CE / CS
W CS / 2CE
2 W CE / CS

## Theory of Machine A body in motion will be subjected to Coriolis acceleration when that body is

In plane motion which is a resultant of plane translation and rotation
In plane rotation with variable velocity
In plane translation with variable velocity
Restrained to rotate while sliding over another body

## Theory of Machine Rectangular bar in a rectangular hole is the following type of pair

Freely constrained motion
Partially constrained motion
Incompletely constrained motion
Completely constrained motion

## Theory of Machine Two systems shall be dynamically equivalent when

M.I. of two about an axis through e.g. is equal
G. of two coincides
The mass of two are same
All of these