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? A. Total momentum may increase or decrease depending on the duration of the collision. B. Total momentum remains the same. C. Total momentum increases. D. Total momentum decreases.

Answer 1

Answer:

option B is correct

Explanation:

according to law of conservation of momentum the total momentum in a closed system remains constant before and after collision

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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