volume_mute
Balloon dropping a sandbag (projectile motion)
publish date: 2022/08/04 05:33:00 GMT+10
A balloon is high enough that the sandbag hits the ground 2 seconds after it is released. At that time the forward speed of the sandbag is still 12 m/s. Its downward speed is now 19.6 m/s.
This drawing uses a scale of (1)cm to represent (2)m/s. The arrow that shows the total is (3)cm long, so the total velocity is (4)m/s.
Reference
Basic Physics: A Self-Teaching Guide