An initial object of mass m is coasting with speed v on a frictionless horizontal surface. A second object of mass m/2 is dropped vertically on the first one and sticks to it. KE1 is the kinetic energy of the first object before the drop and KE1+2 is the kinetic energy of the two objects after the drop
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An initial object of mass m is coasting with speed v on a frictionless horizontal surface. A second...
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