The robot arm is elevating and extending simultaneously. At a given instant, 0 = 20°, Ò = 24 deg/s = constant, 1 = 0.56 m, 1 = 0.20 m/s, and i = 0.05 m/s?. Compute the magnitudes of the velocity v and...

Extracted text: The robot arm is elevating and extending simultaneously. At a given instant, 0 = 20°, Ò = 24 deg/s = constant, 1 = 0.56 m, 1 = 0.20 m/s, and i = 0.05 m/s?. Compute the magnitudes of the velocity v and acceleration a of the gripped part P. In addition, express v and a in terms of the unit vectors i and j. 0.69 m Answers: V = 0.56 m/s 0.24 m/s? a = V = (i -0.09 i + 0.55 j) m/s a = ( i i + j) m/s2 -0.23 i 0.06