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The family of four below is lined up on ice skates. Dad is 80 kg, mom is 65 kg, the older sibling is 40 kg and the younger sibling is 20 kg. Their plan is to all push forward to launch the younger sibling as fast as possible. How will the other three family members move if they succeed

Respuesta :

The other three family members succeed  if they move to the back.

What is momentum?

Momentum of any object is the product of the velocity of the object and its mass.

According to the conservation of linear momentum, when no external force acts on the system, the momentum remains conserved.

The final momentum must be equal to the initial momentum.

To give younger one, the momentum in forward direction, all must move in opposite direction.

Thus,  other three family members succeed  if they move to the back.

Learn more about momentum.

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