Throw a paper ball towards a hard wall. a) Did the wall apply force on the ball? If yes, then what is the name of the force? b) What are the effects of the force applied by the wal

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.