Friday, February 12, 2010

Choose whether each of the following statements is true or false.?

1. In order to move a massive crate sitting on the floor, the force you apply to the crate has to overcome the force of the crate pushing back on you.


2.An object can be moving in one direction while the net force acting on it is in another direction.


3.An object at rest has no forces acting on it.


4.An object can be in motion and still have zero net force acting on it.


Please any help would be greatly appreciated.Choose whether each of the following statements is true or false.?
1. False. Newton's 3rd law says that the force you apply to the crate will always equal the force the crate applies to you. In order to move the crate, what you need to do is overcome the force of friction involved.





2. True. Think of a spring oscillating.





3. False. If you're standing still, gravity's still acting on you right? (Think what force then is keeping you from falling through the floor!)





4. True (Newton's 1st law).Choose whether each of the following statements is true or false.?
3. True,because the object is not in motion.

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