Question

Do you know this ? Not sure if I’m right

Answer 1

Given data:

The initial velocity of the train is,

`\begin{gathered} v_i=9\text{ miles/hour} \\ v_i=(9)/(2.237)\text{ m/s} \\ v_i=4.02\text{ m/s} \end{gathered}`

The final velocity of the train is,

Solution:

The average acceleration of the train is,

`a=(v_f-v_i)/(t)`

where v_f is the final velocity, v_i is the initial velocity, and t is the time taken,

Substituting the known values,