Two objects with the same speed need to stop. Object A is relatively heavier than Object B. Considering that both objects are in the same environment, which will require less effort to stop?

Object A since heavier objects tend to slow down on their own.
Object B since lighter objects has less momentum.
Object A due to its larger kinetic energy that can easily be translated to potential energy.
Object B since friction has greater effect on light objects.
Object A and B will stop at the same time since mass does not affect motion.

The correct answer is: Object B since lighter objects have less momentum.

When objects have the same speed, the momentum of an object is directly proportional to its mass. Therefore, if Object A is relatively heavier than Object B, it will have more momentum. To stop an object, a force needs to be applied in the opposite direction of its motion, and this force is directly related to the object's momentum.

Since Object A has more momentum, it will require more effort to stop compared to Object B. Object B, being lighter, will have less momentum and therefore require less effort to stop.

Object A due to its larger kinetic energy that can easily be translated to potential energy.