Question

you have to use a force to open a door, but no force is needed to close it. true /false​

Answer 1

Answer:

True  

Explanation:

Answer 2

Answer:

False, you have to use a force to open a door, but no force is needed to close it.

Explanation:

• You have to use force to open a door and close it also.
• A normal force is applied to a door to open or close it. The perpendicular distance of force is 0 if the force is applied at the hinges. As a result, no matter how much force is given, there will be no turning effect.