Question

Skater A skates toward Skater B and gently pushes Skater B away. If the skaters are in a closed system, which statement is correct about the total momentum of the system?(1 point)
A) Total momentum decreases.
B) Total momentum remains the same.
C) Total momentum increases.
D) Total momentum may increase or decrease depending on the duration of the collision.

Answer 1

Answer:

1. Total momentum remains the same.

2.The brain moves inside the skull with a force equal and opposite to that of the impact.

3. Nina experiences a force equal to f.

4. The impulse of the collision in system A is twice the impulse of the collision in system B.

5. the greater the mass of the person, the greater the force of the punch

Explanation: Just took it! 100% :)

Answer 2

If the skaters are in a closed system the total momentum remains the same.

In a closed system the total momentum is always conserved.

By applying the principle of conservation of linear momentum, the total momentum before the push of skater A, will be equal to the total momentum after the push.

The equation is given as;

Initial momentum = final momentum

$m_au_a + m_bu_b = m_av_a + m_bv_b$

where;

u and v represents the initial and final velocity of both skaters.

Thus, we can conclude that if the skaters are in a closed system the total momentum remains the same.

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