The electrical force between two charged objects depends on which of the following

It is really hard for me right know

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.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?