if we hang a magnet in front of an iron car will it move ? give reason with suitable answer.
If the magnet is attached to the car, it will not move as the action force of attraction and the reaction force of the magnet on the car will balance each other. However, if the magnet is not attached to the car, the magnet and the car will experience a force and acceleration can be enough to cause motion if the magnet is strong enough. The reason given by your friend above is correct.