ans. this with a valid reasons 19 20 21
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19. a,b cause they have velocities in the same direction so the x coordinate of COM will keep on changing.
20.COM of b,c lies on origin cause if you join them you will find that the line passes through the origin and their velocities are also in the opposite direction.
21.a,d will pass through origin
reason: same as the 20th one but velocities are in same direction.
PSN03:
are u fine now
and did you write aiats
no i didn't our syllabus was also incomplete
ohh
all the best for tomorrow's SMTS
if you have one
yaaa we had
how was it?
are u expecting 90+
yaaa... i felt the paper was easy
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