Question

A car weighing 1600 kg moving with a velocity of 30 m/s retards uniformly coming to rest in 20 s.

Calculate the
magnitude of the force applied

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Answer 1

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$\LARGE\star\mathfrak{\underline{\underline{\red{solution: }}}}$

$: \implies \sf{mu= 1600×30=48000} \\ : \implies \sf{mmv=1600×0=0} \\ : \implies \sf{change \: in \: momentum=mv-} \\ : \implies\sf{mu=0-48000÷20=-2400} \\ : \implies \sf{acceleration=-1.5} \\ : \implies\sf{force=ma=1600×(-1.5)=2400N}$

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