298) In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

299) In above example, the minimum length of the coupler will be

300) In S.H.M., acceleration is proportional to

301) For simple harmonic motion of the of follower, a cosine curve represents

302) In S.H.M., the velocity vector w.r.t. displacement vector