B. Calculate the net force acting on the rocket during the launch process if the mass of the rocket is 25 g and the approximate launch time is 0.14 seconds. C. Explain how you could calculate the launch force acting on the rocket but what would you have to ignore and why?DATA FOR B IS IN IMAGE Using conservation of energy,К. Е., +Р. Е.; — К. Е.f +P. E.fmv + mgh, = mv + mgh,where, v; = launch speedmaximum heighth; = initial height = 0 mhf%3|velocity at maximum height = 0m ·s-Vf =(At maximum height velocity of projectile is 0.substituting values,zmv + mg (0 m) = ;m (0 ms-') + mgh;So, above reduces to,v = gh;So,Iaunching velocity (v;) = V2 gh;substituting numerical values,Iaunching velocity (v;) = \/2 (9. 8 m · s-2 ) (1. 47 m) = 5. 37 m · s-1

According to Newton's second law External force= rate of change of momentum

Answered: Calculate the net force acting on the…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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B. Calculate the net force acting on the rocket during the launch process if the mass of the rocket is 25 g and the approximate launch time is 0.14 seconds.

C. Explain how you could calculate the launch force acting on the rocket but what would you have to ignore and why?

DATA FOR B IS IN IMAGE

Using conservation of energy,
К. Е., +Р. Е.; — К. Е.f +P. E.f
mv + mgh, = mv + mgh,
where, v; = launch speed
maximum height
h; = initial height = 0 m
hf
%3|
velocity at maximum height = 0m ·s-
Vf =
(
At maximum height velocity of projectile is 0.
substituting values,
zmv + mg (0 m) = ;m (0 ms-') + mgh;
So, above reduces to,
v = gh;
So,
Iaunching velocity (v;) = V2 gh;
substituting numerical values,
Iaunching velocity (v;) = \/2 (9. 8 m · s-2 ) (1. 47 m) = 5. 37 m · s-1

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