Dont know where to start

  • Thread starter kmax12
  • Start date
  • #1
8
0
Calculate the force exerted on a rocket, given that the propelling gases are expelled at a rate of 1200 kg/s with a speed of 39700 m/s (at the moment of takeoff).

DO i just multiply? do i have to take gravity into consideration?
 

Answers and Replies

  • #2
60
0
Use conservation of energy along with Newton's third law.
 
  • #3
8
0
so i muliply 1200 and 39700 to get the reaction force , that equals 47,640,000. Is that my answer
 

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