Answer:
(A) Original velocity will be 7.244 m /sec
(B) Acceleration will be 
Explanation:
We have given distance covers by truck s = 40 m
Time taken by truck to cover this distance t = 7.45 sec
Final velocity v = 3.50 sec
According to second equation of motion


-----eqn 1
According to first equation of motion
v = u + at
So
-----eqn2
Solving equation 1 and 2
a = 
And u = 7.244 m /sec
(A) Original velocity will be 7.244 m /sec
(B) Acceleration will be

<span>Hello!
The pointed component, which is not found in such a large amount is the earthworm.
Others, such as air, for example, are permeating all soils.
Hugs!</span>
True........don't blame me if i'm wrong.<span />