When a dying mob fall over and hits the ground, it continues to slide along it rather than stopping in place. The direction is usually similar to that which was active before contacting the ground, but not always identical. The effect appears to be dependent on the mob.
See the attached video.
[media]
Linked issues
is duplicated by 4
relates to 4
MCPE-49418
Phantoms do not drop their exp in the place where they die
Reopened
MCPE-166394
Slime and Magma Cube can still attack player during death animation
Resolved
MCPE-68327
Other zombified piglins aggro when you one-hit kill one of them
Resolved
MCPE-162048
Mob collision boxes still function when mobs are dead
Resolved
Attachments
Comments 13
3 more comments
I concur with PC_screen's analysis. This and MCPE-37789 are the same, it's just that the behavior is more pronounced with mobs that normally jump. The issue is not a lack of friction, it's that pathfinding remains active while mobs are dead. Here is a video of a fleeing dead rabbit:
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This issue together with MCPE-74963 is also the cause of MCPE-49418.
This looks fixed to me in 1.14