20. Two identical balls A and B are relased from the positions shown in figure. They collide elastically on horizontal portion MN. The ratio of the heights attained by A and B after collision will be: (neglect friction) 4h 450 M 609 (1) 1:4 (2) 2:1 (3) 4: 13 (4) 2:5
20. Two identical balls A and B are relased from the positions shown in figure. They collide elastically on horizontal portion MN. The ratio of the heights attained by A and B after collision will be: (neglect friction) 4h 450 M 609 (1) 1:4 (2) 2:1 (3) 4: 13 (4) 2:5
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Transcribed Image Text:20.
Two identical balls A and B are relased from the
positions shown
in figure. They collide
elastically on horizontal portion MN. The ratio
of the heights attained by A and B after collision
will be: (neglect friction)
4h
B
450
M
60
N
(1) 1:4
(2) 2:1
(3) 4:13
(4) 2:5
21
Mognotio
Geld duo
long
onoid of orogn
to
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