How do you work out the resultant (accelerating) force?

  • 0 votes

Here is the question would be great if you could answer it:

A small rocket has a weight of 200N and a mass of 20kg. When launched it accelerates at 5m/s^2. Find:

(a) The resultant (accelerating) force.

(b) The thrust from the engine.

THANK YOU PPS!! :D

Posted Mon 18th February, 2013 @ 14:42 by Former Member

3 Answers

  • 3 votes

(a) Resultant force = Mass x acceleration so 20 x 5 = 100N

(b) Results force = Thrust - weight (cause it's moving forward)

so Resultant force + Weight = Thrust

100 + 200 = 300N

Answered Mon 18th February, 2013 @ 14:45 by Tilly - Team GR
Edited by Tilly - Team GR on Mon 18th February, 2013 @ 14:45
  • 0 votes

THAAANK YOOU SOOOO MUCH :D

Answered Mon 18th February, 2013 @ 15:27 by Former Member
  • 0 votes

That's ok. :)

Just ask if you need anymore help.

Answered Mon 18th February, 2013 @ 15:32 by Tilly - Team GR