Spring Potential Energy Diagram. That stored energy in the spring came from the trains kinetic energy just before impact with the spring. Also available in class 11 medical energy in shmclass 11 engineering energy in shm relatedconcepts.
We calculate the potential energy difference eq. The motion of the block on a spring in shm is defined by the position x t a cos ω t ϕ with a velocity of v t a ω sin ω t ϕ. Therefore the potential energy at x 1m x 1 m is u 1m 1 33nm21m3 05j 15j.
W s xfxi kx dx k x i2 2 k x f 2 2.
U 1 m 1 3 3 nm 2 1 m 3 05 j 15 j. Since an unextended spring does not store potential energy it is used as the point of zero energy. The potential energy the spring with start with would be 12 k the spring constant times d the amount of spring has been stretched squared. K is 10 times 25 and that equals 125.