Force and Motion Unit Test

7 of 187 of 18 Items

Question
A dog weighing 18 kg runs into a park at a velocity of .63 m/s. What is the momentum of the dog?(1 point)
Responses

11.34 kg*m/s
11 . 34 kg * m / s

.035 kg*m/s
. 035 kg * m / s

28.5 kg*m/s
28 . 5 kg * m / s

17.37 kg*m/s

1 answer

To calculate the momentum of the dog, we can use the formula for momentum \( p \):

\[ p = m \cdot v \]

where \( m \) is the mass (in kg) and \( v \) is the velocity (in m/s).

Given:

  • \( m = 18 , \text{kg} \)
  • \( v = 0.63 , \text{m/s} \)

Calculating the momentum:

\[ p = 18 , \text{kg} \times 0.63 , \text{m/s} = 11.34 , \text{kg} \cdot \text{m/s} \]

Thus, the correct response is:

11.34 kg*m/s