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What causes an airplane to accelerate?
An airplane accelerates due to the thrust generated by its engines. As the engines produce forward thrust, the aircraft gains speed. The thrust must overcome drag forces acting on the airplane to achieve acceleration.
Does the net lifting force of the air on the wings increase or decrease on a jet?
The net lifting force on the wings of a jet remains constant during level flight unless the pilot adjusts the angle of attack or the speed of the aircraft. In a steady flight condition, the lift on the wings equals the weight of the aircraft.
What effect the movement of an object at a steady speed?
When an object is moving at a steady speed, it experiences no acceleration, meaning that the net force acting on it is zero. This means that the object will continue to move in a straight line at a constant speed unless acted upon by an external force.
Why do lorries need a force to keep them moving at a steady speed?
They need the force to overcome the friction between the lorry and the road.
Why do you fall at a steady speed before parachuting?
Before parachuting, you fall at a steady speed due to the force of gravity pulling you towards the ground. This speed is reached when the force of gravity is balanced by the air resistance acting on your body, creating a state of dynamic equilibrium known as terminal velocity.
What is an aircraft's speed controlled by?
the speed of the engines
What causes an airplane to accelerate?
An airplane accelerates due to the thrust generated by its engines. As the engines produce forward thrust, the aircraft gains speed. The thrust must overcome drag forces acting on the airplane to achieve acceleration.
Does the net lifting force of the air on the wings increase or decrease on a jet?
The net lifting force on the wings of a jet remains constant during level flight unless the pilot adjusts the angle of attack or the speed of the aircraft. In a steady flight condition, the lift on the wings equals the weight of the aircraft.
How much air drag acts on a jet with a constant velocity of 700 km hr when the force of the jet engines is 40000 N?
Regardless of what its speed is, if the aircraft is not accelerating, then the net force on it is zero. Since the force of the engines is 40,000 N, there must be exactly 40,000 N of opposing force in the opposite direction. That's the air resistance.
How is thrust used in jet engines?
Thrust is the main propulsion medium. The jet engines produce the thrust (the force forward) the air moves across the top of the wings creating a vacuum which in effect hold the aircraft in flight. The greater the engines are worked the greater the thrust and therefore speed.
What effect the movement of an object at a steady speed?
When an object is moving at a steady speed, it experiences no acceleration, meaning that the net force acting on it is zero. This means that the object will continue to move in a straight line at a constant speed unless acted upon by an external force.
What is the net force of a car traveling at a steady speed of 100km per hour?
100
Why do lorries need a force to keep them moving at a steady speed?
They need the force to overcome the friction between the lorry and the road.
What is a thrust for the jet engines?
Thrust is the force produced by a jet engine or any propulsion system that propels an aircraft forward. It is generated by expelling high-velocity exhaust gases in the opposite direction to the desired motion, following Newton's third law of motion. The amount of thrust generated by an engine directly affects the speed and performance of the aircraft.
Why do you fall at a steady speed before parachuting?
Before parachuting, you fall at a steady speed due to the force of gravity pulling you towards the ground. This speed is reached when the force of gravity is balanced by the air resistance acting on your body, creating a state of dynamic equilibrium known as terminal velocity.
What is the net force on a bright red Mercedes convertible traveling along a straight road at a steady speed of 100?
Since the car is traveling at a constant speed, the net force on the car is zero. The forces acting on the car (like friction, air resistance, and engine force) are balanced to maintain the steady speed without acceleration.
A glider sailing across the sky at a steady speed and altitude an example of and unbalanced force?
No, a glider sailing across the sky at a steady speed and altitude is an example of a balanced force. The force of gravity pulling the glider down is balanced by the lift generated by the glider's wings, allowing it to maintain its steady speed and altitude.
