Answer:
The shortest time is 1.2 sec
Step-by-step explanation:
Given that,
Distance = 30 m
Speed = 25 m/s
Acceleration = 4 m/s²
We need to calculate the shortest time
Using formula of time
![t=(d)/(v)](https://img.qammunity.org/2021/formulas/physics/college/cwq2qxh5njqmlzqcaa110w0i173l35zgms.png)
Where, d = distance
v = velocity
Put the value into the formula
![t=(30)/(25)](https://img.qammunity.org/2021/formulas/physics/high-school/hxfrnzvpufmos4twa8j6ldvyodla6b33k1.png)
![t=1.2\ sec](https://img.qammunity.org/2021/formulas/physics/high-school/syzmfcko6la18k4d330lq7sm9tzxlpdfyg.png)
Hence, The shortest time is 1.2 sec.