Mark every of the adhering to statementsastrue or false. If a statement describes "two objects"interactingvia some force, you room not come assume the these twoobjects havethe very same mass.

You are watching: The two forces in each pair act in opposite directions.


The two forces in each pair might have different physicalorigins(for instance, one of the forces could be as result of gravity,and itspair force might be a normal call force).

The expression the the momentum is expresses together follows,

Here,

*
is the momentum,
*
is the fixed of the object and also is the velocity that the object.

Newton’s legislations of motion,

1st law: A human body in state of remainder or of uniform motion continues to be in the same state unless and until compelled by an outside force.


2nd law: The rate of change of momentum of a body is directly proportional to the force applied, and also this change in momentum is in the direction of pressure applied.

*

Here,

*
is the final velocity that the object and
*
is the early stage velocity the the object.

Since acceleration is characterized as the time rate of readjust of velocity, us have

*

Here,

*
is the acceleration.

3rd law: all force between two objects exists in equal in magnitude and opposite in direction.


According to Newton’s 3rd law, if 2 bodies are connecting with some force then pressure on these bodies deserve to be expresses as follows,

Here, and suggest the 2 bodies wherein is the pressure on body due to body andis the pressure on body because of body which is the reaction force.

From the equation we have the right to see the there is just one reaction force.

Therefore, every force has one and also only one 3rd law pair force.

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This is a True statement.


According come Newton’s 3rd law, if two bodies are communicating with some pressure then pressure on these bodies can be composed as,

Here, and show the two bodies whereby is the pressure on body due to body and is the force on body due to body i m sorry is the reaction force.