A car is traveling at a velocity of 22 m/s when the driver puts on the brakes to decelerate it at 1.4 m/s? over a distance of 110 m. What is the car's
velocity at the end of this distance?

Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)