1
VITEEE 2024
MCQ (Single Correct Answer)
+1
-0

A disc of mass 10 g is kept floating horizontally by throwing 10 marbles per second against it from below. If the mass of each marble is 5 g . What will be velocity with which the marble are striking the disc? Assume that, the marble strikes the disc normally and rebound downwards with the same speed.

A
$2.98 \mathrm{~m} / \mathrm{s}$
B
$0.98 \mathrm{~m} / \mathrm{s}$
C
$0.49 \mathrm{~m} / \mathrm{s}$
D
$1.96 \mathrm{~m} / \mathrm{s}$
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