Question

Mechanics and newton’s motion laws depend upon the _________ law.

• A. linear momentum
• B. Energy conservation
• C. Gravitational
• D. Charge conservation

Answer 1

The correct option is C

Gravitational

Explanation for the correct option:

In case of option C,

1. Newton's law depends upon the strength of gravity or the gravitational force.
2. According to Newton's law of gravity, the force of attraction between any two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
3. In mechanics, the universal force of attraction depends on gravitational laws.

Explanation for the incorrect options:

In case of option A,

1. Because the law of conservation of momentum may be deduced from the concept of action and reaction, which asserts that every force has a reciprocating equal and opposite force, it is based on Newton's third law.
2. Mechanics and newton’s motion laws do not depends upon the gravitational law. It does not depend on the linear momentum.

In case of option B,

1. According to Newton's second law, an object's acceleration is inversely proportional to its mass and directly related to the force acting on it.
2. Energy can only be changed from one type of energy to another; it cannot be created or destroyed.

In case of option D,

1. As the name indicated, this law is mainly concerned with the charges. According to the principle of conservation of charge, an electric system's overall electric charge does not vary over time.

Hence, option (C) is the correct answer.