Adog runs down his driveway with an initial speed of 5 m/s for 8 s, and then uniformly increases his speed to 10 m/s in 5 s.
a) what was his acceleration during the 2nd part of the motion?
b) how long is the driveway

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

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.