96.7k views
0 votes
Which one of the following shows valid units for momentum?

1) kg m/s
2) m/s²
3) N
4) J

User Bvowe
by
8.1k points

1 Answer

5 votes

Final answer:

Option 1, kg m/s, represents the correct unit for momentum, as it signifies mass times velocity, aligning with the definition of momentum in physics.

Step-by-step explanation:

The valid unit for momentum among the options given is kg m/s. Momentum is defined as the product of an object's mass and its velocity, which means its unit is mass (kg) times velocity (m/s). This aligns with the principle of conservation of momentum commonly dealt with in Physics.

Option 1, kg m/s, is the correct unit for momentum, as it directly reflects the mass times velocity definition. Option 2, m/s², refers to acceleration. Option 3, Newtons (N), signifies force and is equivalent to kg m/s², as per Newton's Second Law. Option 4, Joules (J), denotes energy and is equivalent to kg · m²/s².

For instance, if an object has a mass of 2 kg and is moving at a velocity of 3 m/s, its momentum would be 6 kg m/s. This unit describes how much 'motion' the object has and is used to predict the results of collisions and interactions in dynamics.

User Bruce Stemplewski
by
9.2k points

No related questions found