KINEMATICS: Scalar Quantities, Vector Quantities, and Vector Addition

Oftentimes in physics, distinctions must be made between phenomena that have a measurable magnitude vs. those that possess both a magnitude and direction. Things that are quantified by magnitude only are referred to as scalar quantities. A scalar quantity describes a measured quantity of something that is unaccompanied by an assigned direction of choice: Ex:Continue reading “KINEMATICS: Scalar Quantities, Vector Quantities, and Vector Addition”

AP PHYSICS: Force and Deceleration

Q: A vehicle weighing ( Fw ) 17.08 kN moves at a constant velocity ( v ) of 35.8 m/s. At some point, the driver decides to let the vehicle coast in neutral, during which air drag causes it to decelerate to 22.4 m/s in 24 s. ( a ) What is the magnitude ofContinue reading “AP PHYSICS: Force and Deceleration”

AP PHYSICS: Acceleration

An object that moves at a constant speed ( or velocity ) will continue doing so until it is acted upon by a force. Whether such an object speeds up or slows down after being impacted by a force, the change in motion is called an acceleration. Typically, a decrease in motion is referred toContinue reading “AP PHYSICS: Acceleration”