Is velocity ever a scalar quantity? - Physics Forums
Dec 27, 2024 · I thought velocity was always a vector quantity, one with both magnitude and direction. When it came to the suvat equations, where v = final velocity, and u = initial velocity, I thought both of …
Why Is Initial Velocity Not Always Zero? • Physics Forums
Aug 9, 2021 · The discussion clarifies that the initial velocity of an object is not always zero, particularly when considering the moment it leaves the thrower's hand. The term "initial velocity" is defined as …
Does Mass of an Object Truly Change with Velocity?
Nov 3, 2005 · Relativistic mass increases with velocity and approaches infinity as an object's speed nears the speed of light (c), while invariant mass remains constant regardless of velocity. Modern …
Does a Falling Object Ever Truly Reach Terminal Velocity?
Nov 21, 2014 · Terminal velocity is definitively reached by a falling object when its speed becomes constant, contrary to the belief that it is only approached asymptotically. The term "terminal" signifies …
What is the derivation for the drag force equation used in Terminal ...
Feb 17, 2005 · The drag force equation used in terminal velocity, expressed as F_drag = 1/2 * C_D * A * ρ * v^2, is fundamentally a definition rather than a derivation. The drag coefficient (C_D) is …
Torque v. Time Graph -- Find angular velocity - Physics Forums
Dec 2, 2014 · The discussion focuses on calculating the angular velocity of an object with a moment of inertia of 3.00 kg·m² subjected to varying torque over time. The key equations utilized include torque …
Understanding Velocity: ds/dt and dr/dt in Particle Motion
Jul 3, 2014 · The discussion confirms that the velocity of a particle moving along a curve, represented as \ (\vec {v} = \frac {ds} {dt} \hat {u}\), is equivalent to the velocity defined by displacement, \ (\vec {v} = …
Understanding 'Escape Velocity' - Debunking Misconceptions
Aug 4, 2005 · The discussion clarifies the concept of 'escape velocity,' emphasizing that it is the minimum speed required for an object to break free from Earth's gravitational influence without …
Spring Physics Help: Initial Velocity & Max Accel.
Dec 8, 2012 · The discussion centers on the physics of oscillation involving a spring, specifically analyzing the effects of initial velocity on amplitude and maximum acceleration. When an object is …
Understanding the Units and Origin of a Velocity^2 vs. Centripetal ...
Mar 23, 2010 · The slope of a velocity squared versus centripetal force plot has units of mass per radius (m/r). This relationship is derived from the equation for centripetal force, which states that centripetal …