1. When Charlie applies the brakes of his car, the car slows uniformly from 2.5 m/s to 0.0 m/s in 5.50 s. How many meters before a stop sign must he apply the brakes in order to stop at the sign?

What is the maximum acceleration of the wing tips, in units of g?

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)