Consider the rigid rod-plus-disc system b b P Find the moment of inertia of the pendulum as it freely rotates about the point P. The rod has a length 0.65 m, and the disc has a radius half that. The pivot at P is a fourth of the way from the end of the rod. The rod has a mass of 1.41 kg and the disc is twice as massive with uniform mass distribution. Answer in units of kg · m2 .

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.