Is this true or a trick question?
In order to get a piano to start moving, you must push against it with a larger force than it pushes on you?
Yes, because you are trying to increase the velocity from zero to a positive value. This requires an acceleration a given by Newton's second law:
F=ma.
Part of the force you apply is used to overcome friction, the rest of it is used to produce an acceleration.
Recall Newton's third law and tell me what you think.
I must disagree with MathMate's answer. A net force is necessary to move the piano, but that was not the question
It is a trick question.
I agree with drwls if "a larger force than it pushes on you" means a larger force than the reaction, which is always equal to the force you apply.
My answer was based on the contextual interpretation of "it pushes on you" as the initial static resistance, since the first sentence was for "the piano to start moving".
My sincere apologies.
This statement is true. In order to get a piano, or any object, to start moving, you need to apply a force larger than the force it exerts on you. This follows Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.
To understand this concept, we can break it down into simple steps:
1. Identify the forces: When you push against a piano, you exert a force on it. At the same time, the piano exerts an equal and opposite force back on you.
2. Analyze the forces: If the force you apply on the piano is greater than the force it applies on you, the net force will be greater in the direction of your push. This difference in forces will cause the piano to move.
3. Overcoming friction: It's important to note that in the real world, there are additional forces at play, such as friction. Friction is a force that resists motion and can make it harder to start an object moving. When trying to move a piano on a surface, you must also overcome the friction between the piano and the floor. This usually requires an even greater force to start moving.
In summary, to get a piano or any object to start moving, you need to apply a force that is larger than the force the piano exerts on you, considering factors like friction.