b) Determine for P in the frame N the position vector NP, velocity vector NP, and acceleration vector NaP.

Find the constraint acceleration equation between block A and B (Assume all upper and down pulleys' centrals are horizontal).

P.2) The lower link of the given mecha- nism is constrained to move horizontally with a velocity VA = 10i ft/s. At the depicted instant, A is located directly beneath the fixed pivot point C, and links AB and BC are orthogonal and of equal length, "B/A = 1.2 ft. Find w and VB. B/C A OB j

4. A stunt plane flying at the Reno Air Races is moving through the sky. The rectangular coordinates describing its motion are: x = -0.74t³ + 2.5t² + 10.25t y = -6.23t² + 16.45t + 8.94 where x and y are given in ft and t is given in seconds. a. Calculate the velocity vector, v, and acceleration, a, of the plane after 10 seconds (velocity is in ft/s and acceleration is in ft/s²). You may want to look back at your Topic 2 notes to recall how position, velocity, and acceleration are related. Your final answer should be given in vector form. b. Calculate the magnitude of the velocity (in mph) and the acceleration (in ft/s²) at t = 10 sec. [Ans. to Check: v = 132.46 mph; a = 41.32 ft/s²]