Three ants are struggling to move the remains of a bee. (Three uncles refuse to help.) One ant pushes north with a force of 35 mN (millinewtons). A second ant pushes east with a force of 12 mN. The third ant, an uncooperative little bug, exerts a force that exactly cancels the effects of the other two. What is the magnitude of the force exerted by the third ant, and in what direction does it push?​

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.