Answer: 350 kg m/s
Explanation: Momentum can be defined as "mass in motion."
P=MV
P = momentum
M=mass
V=velocity
In the question, we were given;
M= 100-kilogram
V= 3.5. m/sec
Therefore,
Momentum= Mass * velocity
Momentum= 100kg * 3.5 m/sec
Momentum= 350kg.m/sec.