A skier is going down a mountain at 3 m/s. They then see their friend up ahead who they want to pass. The skier gets in a tuck and accelerates at an
average acceleration of 2.1 m/s/s for 4 seconds. What is the final speed of
the skier after this time? (use formula sheet)
O 8.4 m/s
O 11.4 m/s
O 14.9 m/s
30.4 m/s

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.