Respuesta :
The first thing to do before starting to solve any numerical is to write down all the information we have.
Initial speed (u) = 10 m/s
Final speed (v) = 39 m/s
Time (t) = 5 seconds
To find acceleration(a):
We know the equation for the first Law of Motion:
v = u+a*t
Hence, we can rearrange this as:
a = (v-u)/t
On substituting the values given,
a = (39 - 10)/5
a = 29/5
a = 5.8 m/(s^2)
Hence, the acceleration of the train is 5.8 m/(s^2)