Practice question · Sort into groups
Sort these statements about projectile motion as True or False.
Groups: True · False
- Acceleration is zero at the peak
- The trajectory is a parabola
- Range is maximized at 45° launch angle
- Horizontal and vertical motions are independent
- Time of flight depends on horizontal velocity
- Complementary angles (e.g. 30° and 60°) give the same range
Hints
- Time aloft is set by the vertical launch component alone.
- The acceleration never changes, not even at the highest point.
Show the answer
True: Range is maximized at 45° launch angle, Complementary angles (e.g. 30° and 60°) give the same range, The trajectory is a parabola, Horizontal and vertical motions are independent
False: Time of flight depends on horizontal velocity, Acceleration is zero at the peak
Why
Time of flight depends only on vertical velocity; always.
Practise Kinematics in Two Dimensions and Projectile Motion
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