when you compress a spring and then compress it again by the same amount, is there a difference in the amount of energy and if so is it doubled? quadrupled?
2007-02-12 08:07:57 · 3 answers · asked by Amy S 2 in Science & Mathematics ➔ Physics
formula is PE=.5ks^2
yes there is a difference
its always 4times
2007-02-12 14:30:49 · answer #1 · answered by climberguy12 7 · 0⤊ 0⤋
Ya your good! you do would desire to contain conservation of means.. initially we've elastic ability means so Usi = a million/2 kx^2 this means equals to 0 simply by fact the rock is not any longer on the spring. the final means is kinetic so ok very final.... Kf = a million/2 mv^2 in accordance to the belief of mechanical means K2 + U2 = K1 + U1 a million/2 mv^2 = a million/2 Kx^2 a million/2 (0.4) V^2 = a million/2 (one thousand)(0.3)^2 fixing for v we get ... 15 m/s to be certain no remember if the rock would attain a fifteen m top with that speed.. we would desire to appreciate the whole means Us = a million/2kx^2 = a million/2 (one thousand) (.3)^2 = 40 5 j soo simply by fact the means is conserved.. this means is the comparable on the top. simply by fact the rock stops on the utmost factor,, we've ability means then soo Ug = mgh 40 5 = (0.4)(9.8)h h =40 5 / 3.ninety two h = 11.40 seven and subsequently they are going to circulate hungry... simply by fact the rock wpnt surpasse the top of 15 m
2016-09-29 00:40:28 · answer #2 · answered by elzey 4 · 0⤊ 0⤋
Depends of if the spring is linear. I would say doubled.
2007-02-12 08:13:46 · answer #3 · answered by nicewknd 5 · 0⤊ 0⤋