Question

What is the momentum of a 4000g object moving to the left (negative direction) at 25 m/s?

Answer 1

-100 kg · m/s

Step-by-step explanation:

We can find the momentum of an object using the formula:

• p = mv
• where p = momentum (kg * m/s), m = mass (kg), v = velocity (m/s), and p and v are vectors

Let's start by converting the mass of the object to kilograms.

• 4000 g → 4 kg

Since the left direction is the negative direction, we know that the velocity of the object is -25 m/s.

Using these variables, we can solve for p in the formula.

• p = mv
• p = (4 kg)(-25 m/s)
• p = -100 kg · m/s

The momentum of the object is -100 kg · m/s.