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A rocket of mass 1.0x10^3kg is being fired to a height of 5.0 x 10^3 m. The rocket engine shuts off when the rocket reaches a height of 1.0x10^3m, and the rocket coasts up to 5.0 x 10^3 m.
A) What velocity must the rocket have at the 1.0x10^3 m point to enable it to reach 5.0 x 10^3m
B) What acceleration did the rocket experience while the engine was on? off?
C) What force did the rocket engine exert on the rocket?
 one year ago
 one year ago
Please help! A rocket of mass 1.0x10^3kg is being fired to a height of 5.0 x 10^3 m. The rocket engine shuts off when the rocket reaches a height of 1.0x10^3m, and the rocket coasts up to 5.0 x 10^3 m. A) What velocity must the rocket have at the 1.0x10^3 m point to enable it to reach 5.0 x 10^3m B) What acceleration did the rocket experience while the engine was on? off? C) What force did the rocket engine exert on the rocket?
 one year ago
 one year ago

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imron07Best ResponseYou've already chosen the best response.1
Strategy: Part A) Assuming rocket stops at 5.0x10^3m, use \(v^2=v_0^22gy\) where y is the rest of travelling distance, (5.01.0)x10^3m. Part B) While on: The rocket must reach velocity in a from rest at a distance 1.0x10^3m. Again, use \(v^2=v_0^22gy\). While off: Simply \(g\). Part C) Newtons famous \(\Sigma F=ma\) where a is the one you found in Part B).
 one year ago

Christians4Best ResponseYou've already chosen the best response.0
Thank you very much! Fanned and medaled!
 one year ago

Christians4Best ResponseYou've already chosen the best response.0
I got a question what is that v in the equation after the equals? is that 2/0?
 one year ago

Christians4Best ResponseYou've already chosen the best response.0
Tell me if im right and please fill in that variable i dont know: 1)V^2=?  2(9.8)(4.0x10^3) 2)V^2=?  2(9.8)(1.0x10^3) B) 9.8m/s^2 3) (1.0x10^3) x whatever i get from 2a?
 one year ago

imron07Best ResponseYou've already chosen the best response.1
1 V=0; ?= v you're looking for 2 v = the one found in 1; ? = 0
 one year ago
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