A ball, thrown vertically upward, is observed to move upward with a speed \(v_1\) at time \(t_1\) and a speed \(v_2,\) downward, at time \(t_2.\)
The average velocity of the ball during the motion is (downward):
1. \(\large\frac{v_2-v_1}{2}\)      2. \(\large\frac{v_2+v_1}{2}\)     
3. \({v_2-v_1}\)      4. \({v_2+v_1}\)     
Subtopic:  Average Speed & Average Velocity |
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