A 5-kg cart moving to the right witha speed of 6 m/s collideswitha concrete wall and rebounds with a speed of 2 m/s. Is thechange in momentum of the cart (a) 0,
(b) 40 kg * m/s,
(c) -40kg*m/s,
(d) -30 kg*m/s,
(e) -10 kg*m/s

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

What is part of a line has one endpoint and continues in one direction?

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=?