I. The position vector of a point is defined by the equation 2. R=4t-i+10j 3 where R is in meters and t is in seconds. Find the acceleration of the point at 1-3 s. 01 A 2 R=500 mm Link 2, in the posture shown, has an angular velocity : 120 rad/s cew and an angular acceleration 2-4 800 rad/s2 cew Determine the absolute acceleration of point A