The problem that follow involve straight-line motion. The time t is in seconds unless othe...

The problem that follow involve straight-line motion. The time t is in seconds unless otherwise stated.

Problem

In the cam-follower mechanism, the slotted bar rotates with constant angular velocity ω = 12 rad/s, and the radial position of the follower A is determined by the profile of the stationary cam. The slotted bar is pinned a distance h = 0.2 m to the left of the center of the circular cam. The follower moves in a circular path 0.42 m in radius. Determine the velocity of the follower when θ = 40°

(a) in terms of polar coordinates and

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(b) in terms of cartesian coordinates.