Look at the picture below. the boy is swinging back and forth on the swing. at which point is the potential energy of a swing the greatest? point a (top) point b (halfway down) point c (bottom) point d (halfway up) save

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here