Two particles A and B are projected in the same vertical plane with the same initial speed u₀ from points A(0,0) and B(l,-h), respectively, towards each other as shown at t=0. Both particles are under the same gravitational acceleration g downward.
Physics · Kinematics part-3 Relative motion · Relative motion in 2-D and shortest distance problem
Two particles A and B are projected in the same vertical plane with the same initial speed u₀ from points A(0,0) and B(l,-h), respectively, towards each other as shown at t=0. Both particles are under the same gravitational acceleration g downward.

Sub-question 1
The path of particle A with respect to particle B will be:
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Sub-question 2
The minimum distance between particles A and B during their motion will be:
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Sub-question 3
The time when the separation between A and B is minimum is:
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