Answer:
B. 34.78 m/s
Explanation:
The momentum of an object is given by:
[tex]p=mv[/tex]
where
p is the momentum
m is the mass of the object
v is its velocity
For the object in this problem, we have
p = 4000 kg m/s
m = 115 kg
So, we can solve the equation to find v, the velocity:
[tex]v=\frac{p}{m}=\frac{4000 kg m/s}{115 kg}=34.78 m/s[/tex]