Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A bullet moving with a velocity of 200 cm / s penetrates a wooden block and comes to rest after traversing 4 cm inside it. What velocity is needed for travelling distance of 9 cm in same block
Text Solution
Verified by ExpertsThe correct answer is:
C
As \(v^{2} = u^{2} - 2as \Rightarrow u^{2} = 2as\) \(\{ \cdot : v = 0 \}\)
\(\rightarrow u^{2} r s\) ⇒ ⇒ \(\frac{u_2}{u_1} = \left| \frac{s_2}{s_1} \right|^{\frac{1}{2}}\)
⇒ ⇒ \(u_2 = \left(\frac{9}{4}\right)^{1/2} u_1 = \frac{3}{2} u_1 = 300 \mathrm{cm}/\mathrm{s}\) .
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