Use the following kinematic equation:
[tex]a=\frac{v-v_o}{t}[/tex]where,
v: final speed = 25m/s
vo: initial speed = 0m/s
t: time interval = 30.0s
a: acceleration = ?
replace the previous values of the parameters into the expression for a and simplify:
[tex]a=\frac{25\frac{m}{s}-0\frac{m}{s}}{30.0s}\approx0.83\frac{m}{s^2}[/tex]The acceleration of th train is approximately 0.83m/s^2
