Asked by y912f
which formula would be used to directly calculate the kinetic energy of an object with mass m bouncing up and don on a spring with spring constant k?
is it KE=1/2kx^2?
or...KE=1/2mv^2?
is it KE=1/2kx^2?
or...KE=1/2mv^2?
Answers
Answered by
drwls
Neither.
KE + (1/2) kx^2 = constant, or
(1/2 m V^2 + (1/2) k X^2 = constant, or
(1/2) k Xmax^2 = (1/2) M Vmax^2 is the consnant
The Vmax and Xmax will not occur at the same time. Maximum deflection Xmax occurs when V = 0, and vice versa
KE + (1/2) kx^2 = constant, or
(1/2 m V^2 + (1/2) k X^2 = constant, or
(1/2) k Xmax^2 = (1/2) M Vmax^2 is the consnant
The Vmax and Xmax will not occur at the same time. Maximum deflection Xmax occurs when V = 0, and vice versa
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