A bullet loses 1/20 of its velocity after penetrating a plank.How many planks

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A bullet loses 1/20 of its velocity after penetrating a plank.How many planks are required to stop the bullet

Options

(a) 6
(b) 9
(c) 11
(d) 13

Correct Answer:

9

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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Topics: Motion in Straight Line (93)
Subject: Physics (2479)

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