tag:blogger.com,1999:blog-5870989333828162642.post8099817267804067182..comments2020-01-01T02:30:41.786-08:00Comments on Ideas That Will Change The World: Heavier things do fall fasterRoshawn Terrellhttp://www.blogger.com/profile/03575030242761754543noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5870989333828162642.post-76185706002552987322014-02-17T23:36:30.747-08:002014-02-17T23:36:30.747-08:00What world are you in? If you mean the "real...What world are you in? If you mean the "real" universe, you have not taken into account the pull of the moon and other forces acting on the objects near the surface of Earth. There are times of high and low tides. Technically when the tide is high, objects experience a bit less pull toward the earth (like the water in the sea).<br /><br />It is impossible to verify or critique your thoughts listed here as you have not defined what the assumptions are. But it is funny. You say yourself that there is no noticeable difference between the force on a tennis ball versus a bowling ball. If so, doesn't that mean F = ma totally holds for most practical matters?<br /><br />Be careful! Especially when correcting that which is accepted!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5870989333828162642.post-51141864458170196312014-02-17T00:35:34.069-08:002014-02-17T00:35:34.069-08:00You have not disproved anything, you have just pro...You have not disproved anything, you have just proved you do not understand physics.<br /><br />Grab your book and read it again. Read over the Second Newton Law and then come back and excuse yourself.<br /><br />"Stronger gravitational pull" as you state it is a Force, and since F=ma you need to divide the force over the mass to get the acceleration. The bigger the mass, the SMALLER the acceleration, for a given force. But since the force contains the same mass itself, they cancel out so you get exactly THE SAME acceleration for all bodies under gravitational attraction.<br /><br />It is good to question things. It is good to think out of the box. I encourage you to continue doing so. But you need solid foundations if you want to achieve anyhing.Envitehttps://www.blogger.com/profile/01379008414066558049noreply@blogger.comtag:blogger.com,1999:blog-5870989333828162642.post-31375996719013134192014-02-16T23:10:40.367-08:002014-02-16T23:10:40.367-08:00Umm...no one believed that things fall at the same...Umm...no one believed that things fall at the same speed :) The time it takes for an object to fall is given by this equation: t = square root of (2*d / g). So it's twice the distance divided by the gravitational constant. But this is only what we get to learn in scool :) The complete formula states clearly (and Newton stated it by the way) - g must be replaced by something else when dealing with astronomical bodies outside of Earth. The complete formula given by Newton and not shown in schools is: t = sqrt(2*d / G(M+m)/r^2. G is still the gravitational constant, but both masses get added this time, and also the radius from the falling object to the center of the body is there. So, I understand your confusion - but it's not Newton's fault. It's the educational system's fault. Anonymousnoreply@blogger.com