A body of mass 'm' is travelling wi...
Question
A body of mass 'm' is travelling with a velocity 'u'. When a constant retarding force 'F' is applied, it comes to rest after travelling a distance 's '. If the initi
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A body of mass 'm' is travelling with a velocity 'u'. When a constant retarding force 'F' is applied, it comes to rest after travelling a distance 's '. If the initial velocity is ( ^{prime} 2 u^{prime}, ) with the same force 'F', the distance travelled before it comes to rest is 's ( _{2}^{prime} . ) Then
(A) ( mathrm{s}_{2}=2 mathrm{s}_{1} )
(B) ( s_{2}=frac{s_{1}}{2} )
( (mathrm{C}) mathrm{s}_{2}=mathrm{s}_{1} )
( (mathrm{D}) mathrm{s}_{2}=4 mathrm{s}_{1} )

NEET/Medical Exams
Physics
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A body of mass 'm' is travelling with a velocity 'u'. When a constant retarding force 'F' is applied, it comes to rest after travelling a distance 's '. If the initial velocity is ′2u′, with the same force 'F', the distance travelled before it comes to rest is 's ′2. Then
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[
cos t rightarrow u=u quad a c c u=a
]
[
begin{array}{l}
Rightarrow quad 0=u^{2}-2 a S_{1}
quad=>quad S_{1}=frac{u^{2}}{2 a}
end{array}
]
If force is pame ( Rightarrow ) accen ( =a ) ( operatorname{vew} U=24 )
( Rightarrow 0=4 u^{2}-2 a s_{2} )
[
Rightarrow quad S_{2}=4 cdot frac{u^{2}}{2 a}=4 S_{1}
]

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