Physics

Problem

a. (i) Convert a speed of

54\,\text{km/h}

into

\text{m/s}

. b. (ii) A train travelling initially at

54\,\text{km/h}

slows down to

36\,\text{km/h}

with a uniform retardation of

0.5\,\text{m/s}^2

. Calculate the distance it covers while reducing its speed.