# GENERAL KNOWLEDGE

## GK

### PHYSICS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Fred has less momentum than Ron. If Fred and Ron have the same mass, who is moving faster?
 A Ron because velocity is directly proportional to momentum. B Ron because velocity is inversely proportional to momentum C Fred because velocity is directly proportional to momentum D Fred because velocity is inversely proportional to momentum
Explanation:

Detailed explanation-1: -p = m v . You can see from the equation that momentum is directly proportional to the object’s mass (m) and velocity (v). Therefore, the greater an object’s mass or the greater its velocity, the greater its momentum. A large, fast-moving object has greater momentum than a smaller, slower object.

Detailed explanation-2: -The momentum of an object is the product of its mass and velocity. Therefore is two objects have the same velocity but difference masses, there momentum will not be the same. In this case, the object with three times the mass of the other has three times the momentum because p = mv.

Detailed explanation-3: -The momentum of an object varies directly with the speed of the object. Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum.

Detailed explanation-4: -In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object. where m is the mass and v is the velocity. The equation illustrates that momentum is directly proportional to an object’s mass and directly proportional to the object’s velocity.

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