Question

How much momentum does a $2kg$ object moving at $15m{s^{ - 1}}$ have?

Answer 1

Hint : The term "momentum" refers to mass in motion. Since all objects have mass, if they move, they have momentum. The proportion of objects moving and the speed at which they are moving are the two variables that determine an object's momentum.

Complete Step By Step Answer:
The product of mass and velocity can be used to calculate the momentum of any object. It is a vector quantity that is completely dependent on the object's mass and velocity. No matter how much mass an object has, it will have zero momentum if it is at rest.
We know that an object of mass $2kg$ will have a momentum of
Momentum $(p) = mv$
$p = 2000 \times 15$ [since $2kg = 2000g$ ]
$p = 30000g$ $m{s^{ - 1}}$
Or $p = 30kg$ $m{s^{ - 1}}$
Hence, we can say that an object having mass $2kg$ and is moving with $15m{s^{ - 1}}$ will have a momentum of $30kg$ $m{s^{ - 1}}$

Additional Information:
The variables mass and velocity influence momentum. The momentum of an object is the same as the mass of the thing multiplied by the speed of the thing in terms of an equation. Any object that is at rest has no momentum. At rest, objects do not have momentum – they have no "mass in motion."

Note :
The term "momentum" refers to a vector number. A vector quantity is one whose magnitude and direction are both fully defined. Since the direction of the speed is the same, the momentum vector has the same direction. It is clear from the concept of momentum that an object has a large momentum if both its mass and velocity are large.