Momentum A ball weighing .05 kg strikes a 1000 kg stationary wall at 30

m/s. According to Newton's Third Law, which of these must

be true?

Select one:

The total momentum of the system after impact is 30000 kg • m/s

The total momentum of the system before impact was 15 kg. m/s

The wall moves away from the ball at 30 m/s.

The total momentum of the system before impact was 1.5 kg . m/s

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

What will a positive and a negative charge do if they are separated from each other?