Question

A boy of mass 60 kg and a girl of mass 40 kg are togetherand at rest on a frozen pond and push each other apart. Thegirl moves in a negative direction with a speed of 3 m/s. Whatis her momentum?

Answer 1

-120

Step-by-step explanation:

40x3 in the opposite directtion is -120

Answer 2

Given:

The mass of the boy is,

`m_b=60\text{ kg}`

The mass of the girl is

`m_g=40\text{ kg}`

The gi