Question

Does a force acting on a body always cause a change bin its state motion
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Answer 1

Answer:

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Answer 2

Any body in motion/ rest will remain in that state unless and until an external force is applied.

If the force is opposite, then a body in motion will come to rest and a body at rest will go in motion. There will always be change in the state of motion when force acts on the body.

Newton's 1st law of motion: A body in motion will reamin in motion unless and until external force is applied. A body at rest will reamin at rest unless and until external force is applied.