An object of mass m moving at speed v0 strikes an object of mass 2 m...
An object of mass m moving at speed v0 strikes an object of mass 2 m which had been at rest. The first object bounces backward along its initial path at speed v 0. Is this collision elastic, and if not, what is the change in kinetic energy of the system?
a) The kinetic energy decreases by mv^2.
b) The kinetic energy increases by mv^2.
c) The kinetic energy decreases by mv^2/2.
d) The collision is elastic.
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An object of mass m moving at speed v0 strikes an object of mass
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