Question

Justifies the True or false of the following propositions:
"Mass is the measure of force acting on a body.
"The law of inertia states that every action always has a reaction.
"The forces of action and reaction have equal directions.
"Newton's third law is called the law of action and reaction.
"The forces of action and reaction act on the same time.

Answer 1

1) False. Mass is the measure of inertia of the body. It is independent of external agents.


2) False. The law of inertia states that if a body does not act external agents, the body is at rest or even rectilinear movement.

3) If by direction we mean the same line of action, it is true. If direction further implies senses is false. They have opposing meanings

4) True.

5) False. They act in different bodies. That is why they do not form a system and do not balance each other.

Answer 2

except 4th other all false

false
false
 false
true
false