Forces acting on rocket at exact moment of liftoff

AI Thread Summary
At the moment of liftoff, a rocket experiences four primary forces: thrust, drag, lift, and gravitational force (weight). Thrust is generated by the rocket's engines, propelling it upward. Drag opposes the motion, acting against the rocket's ascent. Lift is minimal at this stage, as the rocket is primarily overcoming gravity. Understanding these forces is crucial for analyzing rocket dynamics during launch.
bballvas
Messages
6
Reaction score
0
What are all the forces acting on a rocket at the exact moment the engines first begin to work?
 
Physics news on Phys.org
bballvas said:
What are all the forces acting on a rocket at the exact moment the engines first begin to work?
Can you start by naming the forces that you know about?

AM
 
the four forces acting on the rocket at the time of lift off are
lift
drag
thrust
and its own weight( gravitational force)
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top