Answer:
15.1 kg
Explanation:
The momentum of the car can be calculated as mass times velocity, so
[tex]\rho=mv[/tex]Where m is the mass and v is the velocity. Solving for m, we get
[tex]m=\frac{\rho}{v}[/tex]Now, we can replace ρ = 287 kg m/s and v = 19 m/s
[tex]m=\frac{287\text{ kg m/s}}{19\text{ m/s}}=15.1\text{ kg}[/tex]Therefore, the mass of the car is 15.1 kg
