Given the equations below, which description best fits the physical situation?
-99.6m=(-40.0m/s)(2.00s) - 1/2(9.80m/s2)(2.00s)2
1) A projectile's displacement two seconds after being fired downward with a speed of 30.0 m/s.
2) A projectile's displacement two seconds after being fired downward with a speed of 40.0 m/s.
3) A projectile's displacement two seconds after being fired downward with a speed of 50.0 m/s.
4) A projectile's displacement two seconds after being fired downward with a speed of 60.0 m/s.
5) A projectile's displacement two seconds after being fired downward with a speed of 80.0 m/s.
Answer: 2