A2100 kg car starts from rest and accelerates at a rate of 2.6 m/s2 for 4.0 s. assume that the force acting to accelerate the car is acting in the same direction as its motion. how much work has the car done?

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.