Kinematics Problem: Ball Thrown Straight Up
This online calculator solves kinematics problem from the Svetozarov's book for MEPI matriculates

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Well, we finally got to the acceleration topic, which, as you know, is the change in speed over time.
Condition:
The second body was thrown vertically upward next to the first one after t with the same speed v. How long after throwing the second body and at which height h the two bodies will collide?
Solution:
Distance traveled equation
For the first body
For the second body
Accordingly, when they meet, their coordinates will coincide, i.e.
,
from which
After finding time, substitute it in any formula for the distance and find h
Gravitational acceleration is assumed to equal 9.8 m/s2
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