Answer:
The force is calculated as 338.66 N
Explanation:
We know that force is given by

We know that range of a projectile is given by

it is given that R=130 m applying values in the above equation we get

Thus the force is obtained as

Thus force equals 
Its b, energy waiting to be used
Haven't taken physics but I would assume if her friend is standing in front of her that you would add up the speeds and get 30 km/hr.