Which of these is an example of increasing the elastic potential energy of a system? A rubber ball is thrown upward, increasing its height. You lie down on a bed and compress the mattress springs. A bucket of sand is hoisted upward using a pulley, so it can later pull some other object upward. Two magnets are pushed together, so they can later spring apar
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If there are not any exterior torques appearing on a equipment of paticles, angular momentum is conserved. so which you've I*w = 10I*0.1w, I = rotational inertia and w = angular velocity, and angular momentum is I*w in the two circumstances. yet kinetic capability is not any longer a similar: ok.E. = (a million/2)I*w^2 so interior the 2d case ok.E. = (a million/2)*10I*(0.1w)^2 = (a million/2)*0.1I*w or purely a million/10 of the ok.E. of the first case. The capability loss is transferred to notwithstanding pressure added about the replace in I and w. working example: an ice skater spins along with her palms tightly against her physique, then enables them to improve out. This represents a loss in angular ok.E. that is transferred to pressure*distance pulling her palms outward.
A rubber ball is thrown upward, increasing its height. --- change in gravitational potential energy You lie down on a bed and compress the mattress springs. --- change in elastic potential energy A bucket of sand is hoisted upward using a pulley --- change in gravitational potential energy Two magnets are pushed together --- change in magnetic potential energy The only one involving elastic potential energy is you laying down on the bed.
