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JEE Main 2002
Exam
JEE Main
Year
2002
Subject
Physics
Chapter
Motion in One Dimension

JEE Main 2002 · Physics · Motion in One Dimension

Speeds of two identical cars are u and 4 u at the specific instant....

Speeds of two identical cars are uu and 4u4 u at the specific instant. The ratio of the respective distances in which the two cars are stopped from that instant is

Options

  1. A1 : 1
  2. B1 : 4
  3. C1 : 8
  4. D1 : 16

Correct answer

D. 1 : 16

Step-by-step solution

Use u2=2u^2=2 as. a is same for both cases s1=u2/2a;s\mathrm{s}_{1}= \mathrm{u}^2 / 2 \mathrm{a}; \mathrm{s}}_{2}=16 u2/2a=16s1⇒s\mathrm{u}^2 / 2 \mathrm{a}=16 \mathrm{ s}_{1} \Rightarrow \mathrm{s}}_{1}: s2=1:16\mathrm{s}_{2}=1: 16
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