I conducted an experiment to investigate whether the mass of an object will affect the object speed at the bottom of a slope with a constant gradient. The experiment showed that as the mass of the object (car) increases, the speed of the car at the bottom of the slope increases.(adsbygoogle = window.adsbygoogle || []).push({});

I still do not understand why. So far, I have come up with one proof that shows I am correct:

Assuming that all the potential energy at the top of the track is converted to kinetic enegy at the bottom of the track (this is similar to Gallileo's theory)

Ep=mgh

Ek=(mv^2)/2

Ep=Ek

mgh=(mv^2)/2

2mgh=mv^2

2gh=v^2

g=9.81 ms^-2

19.62h=v^2

v=[itex]\sqrt{}19.62h[/itex]

Therefore, the laws of indices shows:

The speed of the object at the bottom of the slope is directly proportional to the square root of the height. Therefore, the mass of the object should not affect the speed of the car at any given point.

Can you please tell me why the mass affects the speed

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# Homework Help: Instantaneous velocity of an object with varying mass at the bottom of a slope

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