Answer:
The answer is 90 m/s
Explanation:
To find the final velocity of an object given it's initial velocity , time taken and it's acceleration we use the formula
v = u + at
where
v is the final velocity
u is the initial velocity
t is the time taken
a is the acceleration
From the question
u = 40 m/s
t = 10s
a = 5 m/s²
We have
v = 40 + 5(10) = 40 + 50
We have the final answer as
90 m/s
Hope this helps you
