*1. The magnitude of an object's momentum is 23[kg*m/s]. If the velocity of that object is doubled, the new momentum of the object is?*

The momentum and velocity of an object is directly proportional. Therefore if the velocity is doubled, the momentum is also doubled.

2 * 23[kg*m/s] = 46[kg*m/s]

*2. A mother pushed a child on a swing by exerting 15N force over a time of .3s. What impulse is delivered to the child?*

J = FΔt

J = 15[N] * .3[s]

J = 4.5[N s]

*3. An impulse of J is applied to an object. The change in the momentum of the object is?*

1. J

*4. Momentum may be expressed in*

4. Newton-seconds