Friday, January 8, 2010

According to Newton's second law of motion, what does an object with more mass require?

more force to accelerate


more distance to accelerate


less force to accelerate


less speed to accelerate


Whats the correct answer?According to Newton's second law of motion, what does an object with more mass require?
F=ma, so more mass means, more force to accelerate.According to Newton's second law of motion, what does an object with more mass require?
F=ma





If the mass is the same, then the greater the mass, the smaller the acceleration. Therefore, if the mass increases, the force has to increase to give the same acceleration





Actually, you can use daily experiences. For example, you need more force to carry an empty bag than a bag filled with books.





Newton's second law did not deal with distance and speed at all, so discard those two.






the acceleration of an object is proportional to the force applied, and inversely proportional to the mass of the object.





So an object with more mass will require more force to accelerate.
Force = mass *acceleration


So it needs more force to accelerate



force = mass * acceleration ,more acceleration

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