A jet plane lands on a runway and decelerate so to rest.

What can you say about the direction of the resultant force on the ane as it decelerates?

What can yu say about the resultant force acting on the plane as it has come to rest?

Many thanks.

The force opposing the motion is the braking, because it is deaccelerating, that force is opposite the direction the plane is rolling.

at rest, the only force on the plane is weight (due to gravity), and the force of the ground pushing up (which is equal and opposite direction to gravity force0.

Thanks.

As the jet plane decelerates to rest, the direction of the resultant force acting on the plane is opposite to its motion. This means that the force is acting in the opposite direction to the direction of the plane's velocity.

Once the plane has come to rest, the resultant force acting on the plane is zero. This means that there is no net force acting on the plane. The forces that were causing the deceleration have balanced out to bring the plane to a stop.

As the jet plane decelerates, the direction of the resultant force acting on the plane will be opposite to its direction of motion. This is known as the net force or the resultant force.

To understand this concept, let's break it down step by step:

When a jet plane is in motion, it experiences a forward force called thrust, which propels it forward. Additionally, there are other forces acting on the plane, such as air resistance and friction. These forces are opposing the plane's motion.

As the plane decelerates, the thrust force reduces or becomes zero, while the opposing forces such as air resistance and friction continue to act. The net result is that the plane experiences a resultant force in the opposite direction of its motion. This is what causes the plane to slow down or decelerate.

Now, when the plane comes to rest, it means it has completely stopped moving. At this point, the net force or resultant force acting on the plane is zero. In other words, the forces that were opposing the plane's motion have balanced out, resulting in no overall force acting on the plane.

So, to summarize:

1. As the jet plane decelerates, the resultant force acting on the plane is in the opposite direction to its motion.
2. When the plane has come to rest, the resultant force acting on it is zero.

Please note that this explanation assumes ideal conditions and neglects other factors like wind or uneven terrain, which may affect the forces acting on the plane.