You are riding in an elevator that is accelerating upward. suppose you stand on a scale. the reading on the scale is you are riding in an elevator that is accelerating upward. suppose you stand on a scale. the reading on the scale is
equal to your true weight
less than your true weight
greater than your true weight

You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?