An illustration for projectile motion is given. Choose the correct answer from the box
below.
1. The net acceleration of the ball is a constant at ______
2. The horizontal acceleration of the ball is zero at ______
3. The vertical acceleration of the ball during ascent is always directed __________.
4. The vertical acceleration of the ball during descent is always directed _________.
5. The net velocity of the ball is least at the ________________.
6. The net velocity of the ball is zero____________.
7. The net velocity of the ball is _________as the horizontal velocity at the peak.
8. The horizontal velocity is _____________in all locations.
9. The vertical velocity is zero in position __________.
10. The vertical speeds are identical in positions _______; and in _________.
11. At the same elevation, vertical velocities are equal but opposite in ___________.
12. The time in going up the peak from an elevation is __________ the time in
going down from the peak back to the same elevation.