Answer:
240 s or 4 min
Step-by-step explanation:
If the car was at rest ;
u = 0
a = 5m/s²
v = 48 m/s
t = ? (to be found)
By formula ,
[tex]a = \displaystyle\frac{v - u}{t}[/tex]
[tex]a = \displaystyle\frac{48 - 0}{t}[/tex]
[tex]a = \displaystyle\frac{48}{t}[/tex]
[tex]5 \ m/s^2 × 48 \ m/s = t[/tex]
[tex]t = 240 \ s[/tex]
