Question

Scientists observe an approaching asteroid that is on a collision course with

earth. they devise a plan to launch a rocket that will collide with the asteroid
inelastically and stop it. the mass of the asteroid is 7500 kg, and it is
approaching earth at 85 m/s. if the rocket has a mass of 900 kg,
approximately what velocity must it have to completely stop the asteroid after
collision?
a. 151 m/s
b-305 m/s
c. -708 m/s
d. 68 m/s

Answer 1

I would have to be A

Step-by-step explanation:

negative numbers wouldn't work here and 68 wouldn't be fast enough to stop it because the asteroid is much heavier than the rocket