Question

A baseball has a mass of 0.45 kg and is thrown with a speed of 25 m/s. What is the momentum of the baseball?

0.018 kg • meters squared per second
11 kg • meters per second
56 kg • meters per second
140 kg • meters per second

Answer 1

11 kg • meters per second

Step-by-step explanation:

Answer 2

The second option: 11 kg * m/s

Step-by-step explanation:

Recall that linear momentum is defined as the product of the mass times its velocity, therefore in this case, the mass is 0.45 kg , and the speed is 25 m/s, therefore the linear momentum is:

P = m * v = 0.45 Kg * 25 m/s = 11.25 kg * m/s

So roundng the answer to the nearest whole number, you get 11 kg * m/s, which is the second option they give you.