They are falling under the sole influence of gravity all objects<span> will </span>fall<span> with the </span>same<span> rate of </span><span>acceleration needless of there size</span>
No I don’t think so. But it worth a try tho. Try it out.
B. F<em>spring = k(triangle)</em> x
You would get 13.7
mi/51mm=3.5mm/13mm
by solving it you will B13.7mm