What force would be exerting on the rocket if it was accelerating at a rate of 15 m/s2 with a mass of 30 kilograms?

450 N

(check picture for explanation)

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.