Motion w/ Constant Acceleration?
A jet lands with a speed of 81.9 m/s, traveling directly south, and comes to a stop over a distance of 949 meters. Assuming the jet decelerates at a constant rate, determine the magnitude and direction of its acceleration. Any help would be greatly appreciated—10 points to the best answer!
3 Answers
Nov 04, 2024
The equation to use:
V² = U² + 2*a*s
0 = 81.9² +2*949*a
0 = 6,707.61 + 1898a
a = -6707.61/1898
a = -3.53
The acceleration is 3.53m/s² and the negative sign indicates that it is to the north ( opposite of south, which we took as positive)
vf squared = vi squared + (a * distance)
* vf is 0 – the plane has come to rest
0 = 81.9^2 + (a * 949)
0 = 6707.61 + 949a
– 6707.61 = 949a
a = – 7.07 m/ s^-2
a = 7.07 m/s^-2 , north
Related Questions
"If this same quantity of energy were transferred to 2.5 kg of water at its boiling point, what fraction of the water wo...
Have you ever noticed how the rear wheel of a bike seems to follow the front wheel closely? Why does this happen, and is...
Find the circumference of a circle with a radius of 5 inches. Please express your answer in terms of pi.
How tall is 77 inches when converted to feet?
Please identify each of the following as measurements: Length Area Volume Mass Density Time Temperature...
In circle O, ST is a diameter. What is the value of x if (2x + 8) equals one of the following options: 22.0, 25.0, 25.4,...
Today's CPUs operate at speeds measured in gigahertz rather than kilohertz. Is this statement true or false?
I have a question regarding torque in a magnetism context. I understand that the equation τ = IABsin(θ) will be relevant...
Could you please help me find the cube roots of the complex number represented in polar form as 8(cos 216° + i sin 216°)...
A 4.5 kg box slides down a 4.4 m high frictionless hill, starting from rest. It then travels across a 2.4 m wide horizon...