Question

define momentum & give S.I unit. state &prove the law of conversation of linera momentum? give me the answer.

Answer 1

the product of mass and velocity of a body is called MOMENTUM."

   Mathematically

Momentum = mass x velocity

   It is a vector quantity. Momentum is always directed in the direction of velocity.
   The unit of momentum is in S.I system kg .m/s or NS. 
   Momentum depends upon mass and velocity of body.

LAW OF CONSERVATION OF MOMENTUM.

   The law of conservation of momentum states that:

"when some bodies constituting an isolated system act upon 
one another, the total momentum of the system remains constant."

OR

"the total momentum of an isolated system of interacting bodies remains constant."
OR
"Total momentum of an isolated system before collision is always equal to total momentum after collision

Answer 2

Heyy mate ❤✌✌❤

Here's your Answer...

If m is an object's mass and v is the velocity (also a vector), then themomentum is. In SI units, it is measured in kilogram meters per second (kg⋅m/s). Newton's secondlaw of motion states that a body's rate of change in momentum is equal to the net force acting on it.
✔✔✔✔