Question

A boy of mass 60 kg and a girl of mass 40 kg are together and at rest on a frozen pond. What is the initial momentum of the boy?

Answer 1

The initial momentum of the boy is 0 kgm/s the right option is A. 0 kgm/s.

What is momentum?

Momentum can be defined as the product of mass and velocity. The S.I unit of momentum is kgm/s.

The initial momentum of the boy can be calculated using the formula below.

Formula:

• M' = mu

Where:

• M = Initial momentum of the boy
  

From the question,

Given:

• M = mass of the boy = 60 kg
• U = Initial velocity of the boy = 0 m/s (at rest)

Substitute these values into equation 1

• M = 60(0)
• M = 0 kgm/s

Hence, The initial momentum of the boy is 0 kgm/s the right option is A. 0 kgm/s.
Learn more about momentum here: brainly.com/question/7538238