Hot air near the surface of a road in summer can create a mirage that looks like a puddle of water. The puddles are actually light waves from the sun that are refracted to your eyes. True or False

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.