If the crank and the connecting rod are 300 mm and 1 m long respectively and the crank rotates at a constant speed of 250 r.p.m., determine the crank angle at which the maximum velocity occurs is ____

(a) 45

(b) 75

(c) 90

(d) 60

I have been asked this question in examination.

I would like to ask this question from Angular Velocity and Acceleration of the Connecting Rod topic in section Inertia Forces in Reciprocating Parts of Machine Dynamics