Question

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Answer 1

Answer:

Momentum is mass in motion and only applies to objects in motion. It's a term that describes a relationship between the mass and velocity of an object, and we can see this when it is written in equation form, p = mv, where p is momentum, m is mass in kg and v is velocity in m/s.

According to the law of conservation of momentum, total momentum must be conserved. The final momentum of the first object is equal to 8 kg * 4 m/s = 32 Ns . To ensure no losses, the second object must have momentum equal to 80 Ns - 32 Ns = 48 Ns , so its speed is equal to 48 Ns / 4 kg = 12 m/s .

Explanation:

Answer 2

Answer:

1. equal to mass

2. p = mv

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