Question

Define linear momentum. Write its formula. Give its SI unit. Is it scalar or vector quantity.

Answer 1

1. The product of mass and velocity of a body is called its linear momentum.
2. The formula of linear momentum is:$p=m\times v$ , where $p=$ linear momentum, $m=$ mass, $v=$ velocity.
3. The SI unit is $Kgm{s}^{-1}.$
4. Linear momentum is a vector quantity because it has both magnitude and direction. The direction of the momentum vector is in the direction of the body’s velocity.
5. A particle's linear momentum is defined as the product of mass and velocity, where velocity is a vector quantity and mass is a scalar quantity. A scalar quantity multiplied by a vector quantity is a vector quantity. As a result, linear momentum is a vector quantity.