Why is momentum equal to mass times velocity? - Physics Forums
Sep 22, 2023 · The discussion revolves around the definition of momentum, specifically why it is expressed as the product of mass and velocity (p = mv) rather than other combinations like mass …
Understanding Zero Velocity and Non-Zero Acceleration: Explained
Aug 1, 2009 · The discussion centers on the concept of having zero velocity while experiencing non-zero acceleration, exploring various scenarios and interpretations within the context of physics.
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 …
Numerade
Confusing speed with velocity, neglecting the directional component of velocity. Overlooking that deceleration is still a form of acceleration (negative acceleration). Failing to correctly apply the vector …
Torque & Power: Understanding Angular Velocity - Physics Forums
Sep 9, 2008 · The discussion revolves around the relationship between torque, power, and angular velocity, particularly in the context of rotating systems. Participants explore how torque can exist in …
Calculating Velocity of a Falling Object with Drag Force
Aug 1, 2011 · The discussion revolves around calculating the velocity of a falling object experiencing drag force proportional to its velocity. The original poster presents a problem involving forces acting …
Calculating Nozzle Flow Rate To work out the flow rate of water from a nozzle we need to work out the volume in a given period of time. To do this we work out the area of the nozzle and then multiply it by …
How to Calculate Flow Rate Using Bernoulli's Equation Without Given ...
Jul 20, 2010 · The discussion focuses on calculating flow rate using Bernoulli's Equation in a horizontal water main scenario, where the cross-sectional areas are 184 cm² and 45.0 cm², with a gauge …
Escape Velocity Question: Why is the final kinetic energy = 0?
Dec 13, 2020 · The discussion revolves around the concept of escape velocity, specifically addressing why the final kinetic energy of an object is considered to be zero when it reaches an infinite distance …
Why a force perpendicular to the velocity doesn't change the …
Jan 10, 2020 · A participant points out that for a change in direction, the acceleration must remain perpendicular to the velocity at all times, particularly in circular motion. It is noted that if the force is …