what is momentum ? and what Sl unit of momentum..?
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Momentum p is a vector having the same direction as the velocity v. The SI unit for momentum is kg · m/s.
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In Newtonian mechanics, linear momentum, translational momentum, or simply momentum is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction. If m is an object's mass and v is its velocity, then the object's momentum is: \mathbf{p} = m \mathbf{v}.
In SI units, momentum is measured in kilogram meters per second (kg⋅m/s). Newton's second law of motion states that the rate of change of a body's momentum is equal to the net force acting on it.
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