If there is no friction (or wind resistance) a body that is in motion will ...

eventually begin to turn and change its direction

never stop moving and have a constant velocity

eventually convert all of its kinetic energy into heat energy

stop after a while with a changing velocity

1 answer

In the absence of friction or wind resistance, a body that is in motion will never stop moving and have a constant velocity. This is in accordance with Newton's first law of motion, which states that an object in motion will remain in motion at a constant velocity unless acted upon by an external force.