269801 An express train moving at\(30 \mathrm{~m} / \mathrm{s}\) reduces its speed to \(10 \mathrm{~m} / \mathrm{s}\) in a distance of \(240 \mathrm{~m}\). If the breaking force is increased by \(12.5 \%\) in the beginning find the istance that it travels before coming to rest

269802 For motion of an object alongthex-axis, the velocity \(v\) depends on the displacement \(x\) as \(v=3 x^{2}-2 x\), then what is the acceleration at \(x=2 m\).

269801 An express train moving at\(30 \mathrm{~m} / \mathrm{s}\) reduces its speed to \(10 \mathrm{~m} / \mathrm{s}\) in a distance of \(240 \mathrm{~m}\). If the breaking force is increased by \(12.5 \%\) in the beginning find the istance that it travels before coming to rest

269802 For motion of an object alongthex-axis, the velocity \(v\) depends on the displacement \(x\) as \(v=3 x^{2}-2 x\), then what is the acceleration at \(x=2 m\).