PhysicsVector QuantityNCTB পদার্থবিজ্ঞান অধ্যায় ২ (গতি)
Velocity
Bengali: বেগ•Pronunciation: ভেলোসিটি•Symbol: \vec{v}
Standard Definition:
The time rate of change of position of an object in a specified direction.
📐 Mathematical Equation, Units & Dimensions
Defining Mathematical Equation
Standard SI Unit
m/s (meter per second)($m/s$ (মিটার/সেকেন্ড))
Dimensional Analysis
CGS Unit
cm/s
📖 Physical Concept & Comprehensive Explanation
Velocity is a directional vector quantity specifying both the speed and direction of travel. Speed is the scalar magnitude of velocity. An object accelerates whenever its speed changes, its direction changes, or both.
🎯 High-Yield Revision Points
- ✓The magnitude of velocity is speed.
- ✓Uniform circular motion has constant speed but changing velocity.
- ✓SI unit is m/s; dimensional formula is [L T^-1].
Use Online Solver for Velocity
Compute step-by-step solutions, verify formulas, and plot interactive diagrams on biggan.me.
❓ Frequently Asked Exam Questions (FAQ)
Common questions in board and competitive entrance examinations
Q1: What is velocity?
Velocity is the rate of change of displacement with respect to time.
Q2: What is the difference between speed and velocity?
Speed is scalar representing path length over time, whereas velocity is a vector representing displacement over time.