Theory of Machine
The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω = Displacement of the particle from mean position)

ω √(x² - r²)
ω² √(x² - r²)
ω √(r² - x²)
ω² √(r² - x²)

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Pitch point on a cam is

The point on cam pitch curve having the minimum pressure angle
The point on cam pitch curve having the maximum pressure angle
Any point on pitch circle
Any point on pitch curve

ANSWER DOWNLOAD EXAMIANS APP