The end point B of a boom is originally 5 m from fixed point A when...

 

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The end point B of a boom is originally 5 m from fixed point A when the driver starts to retract the boom with a constant radial acceleration of = -1.0 m/s? and lower it with a constant angular acceleration e = -0.5 rad/s?. At t = 2 s, determine (a) the velocity of point B, (b) the acceleration of point B, (c) the radius of curvature of the path. Fig. P11.192 B 60° The end point B of a boom is originally 5 m from fixed point A when the driver starts to retract the boom with a constant radial acceleration of = -1.0 m/s? and lower it with a constant angular acceleration e = -0.5 rad/s?. At t = 2 s, determine (a) the velocity of point B, (b) the acceleration of point B, (c) the radius of curvature of the path. Fig. P11.192 B 60°