Frank Solutions for Class 9 Physics Chapter 2 Motion in One Dimension - Download Free PDF with Solution
FAQs on Frank Solutions for Class 9 Physics Chapter 2 Motion in One Dimension - PDF
1. Differentiate between speed and velocity.
Speed is a scalar quantity with no direction. Velocity, on the other hand, is a vector quantity with magnitude and direction. The velocity of a body can be zero but not speed.
2. Give an example of non-uniform velocity.
A freely falling body experiences variable velocity. Its direction remains the same but the magnitude of velocity increases.
3. What is instantaneous velocity?
The velocity of a body in a state of variable velocity at an instant is called instantaneous velocity.
4. What is acceleration?
The rate at which the velocity of a body increases with respect to time is called its acceleration.
5. What is retardation?
The rate at which the velocity of a body reduces with respect to time is called its retardation. It is also called negative acceleration.