The landing of a spacecraft is cushioned with the help of airbags. during its landing on mars, the velocity of downward fall is 16 meters/second. immediately after the impact, the velocity is reduced to 1.2 meters/second. if the spacecraft has a mass of 11.5 × 104 kilograms, what is your estimate for the impulse if the time of impact is 0.8 seconds? a. 1.7 × 106 kilogram meters/second b. 9.0 × 106 kilogram meters/second c. 9.4 × 104 kilogram meters/second d. 2.1 × 106 kilogram meters/seconde. 1.0 × 103 kilogram meters/second