7. A car with a mass of 1,032 kilograms hits a wall head-on at a speed of 28.2 m/s. If the wall exerts a force of 2.25 x 10 N, how long does it take to bring the car to rest?

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative