A boulder weghighs 10,000 grams and rolling at a rate of 2 m/s, has a momentum of
To find the momentum of a moving object, you need to multiply its mass by its velocity.
In this case, the boulder has a mass of 10,000 grams, which we can convert to kilograms by dividing by 1000. So, the mass of the boulder is 10 kilograms.
The velocity of the boulder is given as 2 m/s.
Now, we can calculate the momentum using the formula: momentum = mass * velocity.
Substituting the values, we get: momentum = 10 kg * 2 m/s.
Calculating that, we find that the momentum of the boulder is 20 kilogram-meters per second (kg·m/s).