Please enable JavaScript.
Coggle requires JavaScript to display documents.
Force (Concepts? (Air Resistance, Torque, Thrust), Laws (Second Law (Also…
Force
-
Laws
Second Law
Also known as the Law of Force and Acceleration, Newton’s Second Law of Motion states that when an unbalanced force acts on an object. The more mass the object has, the more force has to be used to move it.
-
If you use the same force to push a car and a truck, the car will have more acceleration than the truck, due to the less mass the car has.
Third Law
For every action, there is an equal and opposite reaction.
To move a boat forward, you need to row it backwards.
First Law
Also known as the Law of Inertia, Newton’s First Law states that objects with balanced forces acting on them will stay at rest or stay in constant motion.
When you slide a hockey puck on ice, eventually the puck will stio due to the friction of the ice, or when hitting the goalpost.
Weight and Mass
Weight is not the same as mass. Mass is a measure of how much matter is in an object. Weight is a force acting on that matter.
-
Gravity
The force of attraction between all objects. The more mass an object has, the larger the force of gravity it exerts.
-
-
Friction
When two surfaces slide past each other, the interaction between them produces a force of friction. Friction is a force that opposes motion.
An aircraft of mass of 1200 kg starts from rest and accelerates along a straight horizontal runway. The aircraft engine produces a constant thrust of 3400 N. A constant frictional force of 400 N acts on the aircraft.
Calculate the acceleration of the aircraft.
-