I need to know how to find acceleration

  • Thread starter Thread starter Chad0109
  • Start date Start date
  • Tags Tags
    Acceleration
AI Thread Summary
To find the required acceleration for a plane to reach a velocity of 120 km/h on a 300-meter runway, the relevant equation is Xf = V0t + 1/2at^2. In this equation, Xf represents the final position (300 meters), V0 is the initial velocity (which is zero if starting from rest), and 'a' is the acceleration needed. The discussion highlights a need for clarification on the variables in the equation and how to apply them to solve the problem. Understanding these terms is crucial for calculating the acceleration correctly. The focus remains on applying the formula to determine the necessary acceleration for the plane.
Chad0109
Messages
3
Reaction score
0

Homework Statement

Homework Equations

The Attempt at a Solution

 
Physics news on Phys.org
Look, the question is there is a runway that is 300 meters long. how many meters per second per second must the plane accelerate if it must have a velocity of 120 KM per hour. I already know the awnser, i just need to know how to do it.
 
Look, the question is there is a runway that is 300 meters long. how many meters per second per second must the plane accelerate if it must have a velocity of 120 KM per hour. I already know the awnser, i just need to know how to do it. I understand the formula Xf=Vot+1/2at^2
 
Well, what does Xf stand for? How about V0?
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

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...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

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}...
View full post »

Similar threads

Displacement given the acceleration
Replies
8
Views
1K
Finding the change in velocity from an acceleration vs time graph
Replies
1
Views
3K
How to Determine Acceleration from a Velocity-Time Graph?
Replies
5
Views
2K
Condition for Instantaneous Acceleration = Average Acceleration
Replies
3
Views
2K
Acceleration of a shot put ball
Replies
3
Views
3K
Calculate elevator acceleration using mass
Replies
9
Views
4K
Gravitation sum related to Centripetal Acceleration
Replies
5
Views
3K
Angle between radius and acceleration
Replies
4
Views
1K
Finding when acceleration is zero
Replies
1
Views
2K
Why is Radial Acceleration Ignored for a Rotating Board?
Replies
9
Views
978

Hot Threads

Recent Insights

Back
Top