linear momentum has units of (a)N/m (b)kg*m/s (c)N/s (d)all of the preceeding
The correct answer is (b) kg*m/s.
To understand how to arrive at the answer, let's break down the units involved:
- Newton (N) is the unit of force.
- Meter (m) is the unit of length.
- Kilogram (kg) is the unit of mass.
- Second (s) is the unit of time.
Now, linear momentum is defined as the product of an object's mass and its velocity. Mathematically, linear momentum (p) can be represented as:
p = m * v
Here,
p is the linear momentum,
m is the mass,
and v is the velocity.
The unit for mass is kilograms (kg), and the unit for velocity is meters per second (m/s). Multiplying kg by m/s, we get the unit for momentum as kg*m/s.
Therefore, the correct answer is (b) kg*m/s.