At its nucleus, the milky way galaxy is about 100,000 light-years wide and 10,000 light-years thick 100,000 light-years thick 1,000 light-years thick 1,000,000 light-years thick

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.