The robot arm is elevating and extending simultaneously. At a given instant, \theta =36\deg ,\theta ^(˙)=23de(g)/(s)= constant, l=0.52m,l^(˙)=0.25(m)/(s),
and l^(¨)=-0.15(m)/(s^(2)). 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.
Answers:
v=,(m)/(s)
a=i^(i),(m)/(s^(2))
v=([-,i+,j)(m)/(s)
a=(,i+,j)(m)/(s^(2))]