16. A ball is moving towards the wall as shown in diagram then its momentum is conserved
*
v m/s
ma
0
00
v m/s
(1) Along the wall
(2) Along the perpendicular to the wa
(4) Both (1) & (2)
(3) Along any direction.
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When it hits a vertical wall it rebounds with a horizontal velocity v to the left. Since momentum is mass times velocity there would be a tendency to say momentum has been conserved
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