gravity
wind resistance
weight
When an airplane is still on the ground, the main forces acting on it are the gravitational force acting downwards and the normal force exerted by the ground acting upwards to support the weight of the airplane. There are typically no aerodynamic forces acting on the airplane until it starts moving.
The four forces that act on an airplane during flight are lift (upward force generated by the wings), weight (downward force due to gravity), thrust (forward force generated by the engines), and drag (rearward force resisting motion).
The main forces acting on the falling climber are gravity pulling them downwards and air resistance pushing against their motion. These forces together determine the acceleration of the climber as they fall.
The forces acting on the egg are gravity pulling it downwards and the normal force pushing it upwards. The normal force is exerted by the branch of the tree the egg is falling from, preventing it from falling through the branch.
When a parachutist is falling, the forces acting on them are gravity pulling them downward and air resistance pushing against their fall. Gravity is the dominant force causing the parachutist to accelerate towards the ground while air resistance counteracts this force, eventually leading to a terminal velocity where the forces are balanced.
When an airplane is still on the ground, the main forces acting on it are the gravitational force acting downwards and the normal force exerted by the ground acting upwards to support the weight of the airplane. There are typically no aerodynamic forces acting on the airplane until it starts moving.
The four forces that act on an airplane during flight are lift (upward force generated by the wings), weight (downward force due to gravity), thrust (forward force generated by the engines), and drag (rearward force resisting motion).
The forces acting on a falling body are gravity and air resistance.
The main forces acting on the falling climber are gravity pulling them downwards and air resistance pushing against their motion. These forces together determine the acceleration of the climber as they fall.
The forces acting on the egg are gravity pulling it downwards and the normal force pushing it upwards. The normal force is exerted by the branch of the tree the egg is falling from, preventing it from falling through the branch.
When an airplane is motionless on the tarmac, discounting any winds, there are two primary forces acting on it. First is the force of gravity pushing downwards, and secondly, there is the reactionary force pushing back upwards.
When a parachutist is falling, the forces acting on them are gravity pulling them downward and air resistance pushing against their fall. Gravity is the dominant force causing the parachutist to accelerate towards the ground while air resistance counteracts this force, eventually leading to a terminal velocity where the forces are balanced.
Lift Gravity Thrust Drag Lift is the lifting force that allows airplanes to fly, gravity is the force pulling it back down. Thrust is the force that propels an airplane forward, drag is the aerodynamic friction slowing it down. These variables are constantly interacting with eachother, when an airplane is in straight and level flight, these forces are said to be in balance.
Free fall describes an object that is falling and the only force acting on it is gravity. In free fall, the object is accelerating downward due to the force of gravity without any other forces affecting its motion.
The force acting on a falling object is the gravitational force, which pulls the object towards the center of the Earth. This force causes the object to accelerate downwards, leading to its motion. The magnitude of this force is determined by the mass of the object and the acceleration due to gravity.
The net force on the model airplane is the vector sum of all the forces acting on it, such as lift, weight, thrust, and drag. If the net force is zero, the airplane will remain in a state of constant velocity or at rest, according to Newton's first law of motion.
Thrust (from engine), aerodynamic drag, lift (from wings) and weight (mass * acceleration due to gravity).