Question

Difference between internal and external forces.

Pls write at least 3 points

Pls write the and yourself

Answer 1

HELLO MATE

internal force

Internal Forces are forces between objects found inside the system.

★cannot do work on system

★cannot change total energy of the system

External forces

External forces are forces that act on the system and their agents are part of the environment.

★can do work on system

★can transfer energy into or out of system, thus changing the total energy of the system.

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Answer 2

Answer:

internal force means

the force that acts internally and which we cannot stop like ( heart)

external force means the force that acts externally where we can control it like breathing we can stop and then begin it for some time