All objects anywhere on or near the Earth are A.
spun in a counterclockwise direction by magnetic forces.
B.
pulled toward Earth by the force of gravity.
C.
pushed away from Earth by the force of repulsion.
D.
held in place by several forces pushing and pulling on them.

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.