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kati45 [8]
3 years ago
8

2. The product of an object’s mass and velocity is its

Physics
2 answers:
mars1129 [50]3 years ago
5 0
2. The product of an object’s mass and velocity is its
The correct answer is momentum.


3. What is conserved when two objects collide in a closed system? 

The correct answer is momentum.


4. What is the momentum of a 50-kilogram ice skater gliding across the ice at a speed of 5 m/s? 

The correct answer is 250 kg • m/s
Mamont248 [21]3 years ago
3 0
<h3>2.<u> Answer;</u></h3>

Momentum

<h3><u>Explanation;</u></h3>
  • <em><u>Momentum refers to mass in motion, which means that objects that have mass and are in motion, will posses momentum, that is, they have their mass in motion. </u></em>
  • <em><u>Momentum is given as the product of velocity of an object and its mass. Therefore, the amount of momentum possessed by a moving  object or body is the product of mass and velocity. That is; p = m × v</u></em>
  • From the equation, momentum is directly proportional to both mass and velocity.

<h3>3. <u>Answer;</u></h3>

Momentum

<h3><u>Explanation;</u></h3>
  • <em><u>During collision, a force acts upon a body for a given amount of time change the velocity of an object. Product of force and time is called impulse</u></em>. The product of mass and velocity change is the change in momentum.
  • <em><u>During collision the momentum change experienced by one object is equal in magnitude and opposite in direction to the momentum change experienced by the other object in collision.</u></em>
  • That is; M1V1 =M2V2
<h3>4. <u>Answer; </u></h3>

= 250 kgm/s

<h3><u>Solution and explanation;</u></h3>
  • <em><u>Momentum is given as the product of velocity of an object and its mass. </u></em>Therefore, the amount of momentum possessed by a moving  object or body is the product of mass and velocity.
  • That is; p = m × v
  • mass = 50 kg, velocity = 5 m/s ; thus momentum will be;
  • p = 50 × 5 = 250 kgm/s

Therefore, <em><u>momentum of the ice skater will be; 250 kgm/s</u></em>

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