The acceleration of a train travelling with speed of $400 \,m/s$ as it goes round a curve of radius $160\,m$, is
The acceleration of a train travelling with speed of $400 \,m/s$ as it goes round a curve of radius $160\,m$, is
$1\,\,km/{s^2}$
$100\,\,\,m/{s^2}$
$10\,\,m/{s^2}$
$1\,\,m/{s^2}$
The acceleration of a train travelling with speed of $400 \,m/s$ as it goes round a curve of radius $160\,m$, is
$a = \frac{{{v^2}}}{r} = \frac{{{{(400)}^2}}}{{160}} = {10^3}\,m/{s^2} = 1\,km/{s^2}$