given 3 balls made of the same material but of different sizes (small, medium and large).
2007-12-22 22:46:35 · 2 answers · asked by Dan Michael D 1 in Science & Mathematics ➔ Physics
In spite of popular believes size does not matter.
Acceleration will remain the same and equal to 1 g
The force of gravity or weight these objects will experience is proportional to their masses.
Therefore weight is
W=mg
m- mass of the object
g- acceleration due to gravity (is a constant for a particular place)
2007-12-23 02:30:37 · answer #1 · answered by Edward 7 · 1⤊ 0⤋
Edward's assertion that size does not matter is based on the absence of air resistance.
If the balls are all dropped from the same point in space and time with air present, the smallest will have the greatest ratio of surface area to mass.
Air drag is proportional to the surface area and the net force on the smallest ball (mg-D) will be least of all the balls. Since
a = Fn/m, a(resultant) will be minimum for the smallest ball.
2007-12-24 16:30:00 · answer #2 · answered by Steve 7 · 1⤊ 0⤋