Why are you convinced you are missing a force?Blobikins said:What force am I missing?
You're missing the fact that 500 N is ≠ 1/4 of the weight of the plane. Remember, 2000 kg is the mass of the plane, not its weight.Blobikins said:Homework Statement
A 2000 kg plane is landing at an airfield with an initial speed of 50 m/s. The force of friction is 1/4 the weight of the plane. What is the acceleration of the plane?
Homework Equations
Fnet = ma
Fnet = something - ff
The Attempt at a Solution
2000a = thing I don't know - ff, which is 500 n
So
2000a = ? - 500N
What force am I missing?
The acceleration of a plane can be calculated by dividing the net force acting on the plane by its mass. The net force is equal to the difference between the thrust force and the friction force. So, the formula for calculating acceleration is: a = (Thrust Force - Friction Force) / Mass. The initial velocity does not play a role in this calculation.
The unit of measurement for acceleration is meters per second squared (m/s^2).
Yes, the acceleration of a plane can be negative if the net force acting on the plane is in the opposite direction of its motion. This could happen if the friction force is greater than the thrust force.
The mass of the plane directly affects its acceleration. The greater the mass, the more force is required to accelerate the plane. This means that a heavier plane will have a lower acceleration compared to a lighter plane with the same amount of force acting on it.
Yes, the acceleration of a plane can change during its flight. This can happen if the thrust force or friction force changes, or if the mass of the plane changes (e.g. if fuel is consumed during flight). The acceleration can also change due to external factors such as air resistance and wind speed.