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  Velocity and Types of Velocity concepts and solved Numerical Target:  CBSE Board Exams  | State Board Exams  | NTSE | Olympiads | Foundation  Velocity : Definition : Velocity is the rate of change of displacement of a body with respect to time. Tells us : How fast and in which direction an object is moving. Quantity : It is a Vector Quantity It means, it gives both Magnitude (Speed) as well as direction. SI unit : SI unit of Velocity is meter per second (m/s) Formula :                                           v = Δs / Δt                                 where,                        ...

  Distance and Displacement Concepts with solved Numerical and Work sheet PDF Target:  CBSE Board Exams  | State Board Exams  | NTSE | Olympiads | Foundation  Distance: Definition: The total length of the actual path travelled by an object, regardless of direction. Nature/Type : Scalar quantity (only magnitude, no direction) Value : Always positive S.I. unit : meter (m) Formula :  Distance = sum of length of path segments Distance  = Speed × time Displacement : Definition :  The shortest straight line distance between the initial position and final position of the object, along with direction. Nature/Type :  Vector  quantity (magnitude + direction) Value :  Can be  positive, negative or zero S.I. unit :  meter (m) Formula :  Displacement = length of straight line between initial position and final position Displacement = Final position - initial position Displacement  = Velocity × time Displacement in 2D If an...

  Motion – Class 9 Notes, Formulae, and Numerical PDF Download Chapter: Force and Laws of Motion Class: 9 Science Target: CBSE Board Exams  | State Board Exams  | NTSE | Olympiads | Foundation  Introduction: - In this chapter, we explore the fundamental concepts of force and the three laws of motion given by Sir Isaac Newton . These laws form the foundation of classical mechanics and are essential for understanding how objects move and interact. Force: Force is a push or pull upon an object resulting from its interaction with another object.  It has both magnitude and direction, making it a vector quantity . Formula:                                                   F = m × a Where: F = Force (in Newtons, N) m = Mass of the object (in kg) a = Acceleration of the object (in m/s²) Types of Force: There are two basic  ty...