Question

Determine the momentum of a system that consists of two objects. One object, m1, has a mass of 12 kg and a velocity of 7.0 m/s towards the east and a second object, m2, has a mass of 5.0 kg and a velocity of 42 m/s in that same direction. What direction is the momentum of the system?

Answer 1

Given

Mass of object 1 is

`m_1=12\text{ kg}`

Velocity is

`v=7.0\text{ m/s}`

Mass of the second object is

`m_2=5.0\text{ kg}`

Velocity is

`v=42\text{ m/s}`

To find

The momentum of the system

Step-by-step explanation

Momentum is given by

`\begin{gathered} p=m_1v_1+m_2v_2 \\ \Rightarrow p=12*7+5*42 \\ \Rightarrow p=294\text{ kgm/s} \end{gathered}`

towards east

Conclusion

The momentum is 294 kgm/s towards east