123jrid
Answered

a train accelerates to a speed of 20 m/s over a distance of 150m.determine the acceleration(assume uniform) of the train

Sagot :

Daedalusid
assuming the train started from rest then;

[tex]v_{f}^{2} = v_{i}^{2} + 2ad \\\\ \frac{v_{f}^{2}-v_{i}^{2}}{2d} = a \\\\ \frac{400-0}{300} = a \\\\ 1.33 \frac{m}{s^{2}}= a[/tex]