In part A of today's experiment (no incline), if the mass on the hanger was measured to be 56 grams, and the mass of the cart (weights included) was measured to be 578 grams, what would the magnitude of the theoretical acceleration (in m/s2) of the cart be

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?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Need only answer if you think you know it