Answer:
The final velocity of the object is 114 m/s.
Step-by-step explanation:
It is given that,
Initial velocity of the object, u = 14 m/s
Acceleration of object,

Time taken, t = 20 s
Let v is the final velocity of the object. It can be calculated using first equation of motion as :


v = 114 m/s
So, the final velocity of the object is 114 m/s. Hence, this is the required solution.