Answer:
m = 0.01 kg
Explanation:
Given that,
Momentum of the marble, p = 0.15 kg-m/s
Speed of the marble, v = 15 m/s
We need to find its mass. We know that,
Momentum, p = mv
Where
m is the mass

So, the mass of the marble is equal to 0.01 kg.
Answer:
I think it is the 3 option
Force=mass*acceleration
F=ma
F=25*5
F=100 N
Here is my step-by-step-work. Let me know if you have any questions! :)