The momentum of a 5 kg thrown 3 m/s is _________ kg m/s.

To find the momentum of an object, you need to multiply its mass by its velocity. In this case, the object has a mass of 5 kg and a velocity of 3 m/s.

To calculate the momentum, you can use the formula:

Momentum = Mass × Velocity

Plugging in the values:

Momentum = 5 kg × 3 m/s

Now, let's calculate it:

Momentum = 15 kg m/s

So, the momentum of a 5 kg object thrown at 3 m/s is 15 kg m/s.