Dynamics

• Newton's first law of motion states that an object will remain at rest or in a state of constant velocity unless acted upon by an external force
• Newtion's second law states that, for a body of constant mass, the acceleration is directly proportional to the resultant force applied to it
• $Force =$$mass *$$acceleration$
• Newton's third law states that, when two bodies interact, the forces they exert on each other are equal in magnitude and opposite in direction
• Mass is a measure of the amount of matter in the body, and is the measure of the property of a body that resists motion aka inertia
• Weight is the force of gravitational attraction on a body
• $Weight =$$mass *$$gravitational-acceletation$
• Center of gravity is the average location of the weight of an object
• Upthrust is the upwards force that a fluid applies on an object
• Center of mass- the single point through which all the mass of an object can be said to act