Answer
The answer to this question is [tex]30 ms^{-1}[/tex]
Explanation
As we know that accelartion is the rate of change of velocity. So, it can be write as
[tex]a = (V_f -V_i) /t[/tex]
where
[tex]V_f[/tex] is the final velocity
[tex]V_i[/tex] is the initial velocity
t is the time
a is the accelartion
as we konw
[tex]a = 3 ms^{-2}[/tex]
t = 10 s
From rest So,
[tex]V_i[/tex] = 0
[tex]V_f[/tex] = ?
Putting values
[tex]3 = (V_f - 0)/10[/tex]
[tex]3 * 10 = V_f[/tex]
[tex]30 = V_f[/tex]
[tex]V_f = 30 ms^{-1}[/tex]
So, the right answe is [tex]30 ms^{-1}[/tex]
