Answer :
Final answer:
The momentum of a rugby player with a mass of 94 kg running at a speed of 8 m/s is calculated by multiplying the mass and velocity together, resulting in a momentum of 752 kg m/s.
Explanation:
Momentum is a concept in physics defined as the product of an object's mass and its velocity. Momentum is the quantity that is used to describe the state of motion of an object with a non-zero mass. Hence, momentum is applicable to any moving object.
If is the mass of an object and is the velocity with which this body travels, then momentum can be expressed as p = mv. Since velocity is considered to be a vector, momentum is considered a vector as well. This means momentum has a significant magnitude and direction—the momentum direction indicated by a vector or an arrow.
For example, when a ball with a given mass is traveling at a particular speed, it possesses momentum. The moment the ball hits a wall, it comes to rest and therefore transfers its momentum to the wall.
Therefore, momentum is always conserved In this case, you're asked to calculate the momentum of a rugby player with a mass of 94 kg running at a speed of 8 m/s. The formula to calculate momentum (p) is p = mv, where m is mass and v is velocity.
Substituting the given values into the formula, we get: p = 94 kg * 8 m/s = 752 kg m/s. Therefore, option (A) 752 kg m/s is the correct answer. This implies that the player, by sprinting towards the line to score a try, has a momentum of 752 kg m/s.
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