Speed of two identical cars are u and 4u at a specific instant. ratio of respective distances in whi

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2.Motion in Straight Line

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Speed of two identical cars are $u$ and $4u$ at a specific instant. The ratio of the respective distances in which the two cars are stopped from that instant is

A$1:1$

B$1:4$

C$1:8$

D$1:16$

(AIEEE-2002)

Solution

(d) $S \propto {u^2} \Rightarrow \frac{{{S_1}}}{{{S_2}}} = {\left( {\frac{1}{4}} \right)^2} = \frac{1}{{16}}$

Standard 11

Physics

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