You throw a baseball straight upward with speed v0. When the ball returns to the point from where you threw it, how does its speed compare to v0 (a) in the absence of air resistance and (b) in the presence of air resistance? Explain.
Solution to 26DQ Step 1 (a) In the absence of air resistance, the velocity with which the baseball reaches the starting will be equal to the velocity with which it was thrown upwards. The distance baseball travels to reach highest point is equal to the distance it travels to reach the starting point. The time taken by the baseball is also same in both the directions. Thus the velocity is also same in both directions.