a 3.2 kg box of running shoes slides on a horizontal frictionless table and collides with a 2.0 kg box of ballet slippers initially at rest on the edge of the table, at height h = 0.40 m. The speed of the 3.2 kg box is 3.0 m/s just before the collision. If the two boxes stick together because of packing tape on their sides, what is their kinetic energy just before they strike the floor?

Question

a 3.2 kg box of
running shoes slides on a horizontal
frictionless table and collides with a
2.0 kg box of ballet slippers initially
at rest on the edge of the table, at
height h = 0.40 m. The speed of the
3.2 kg box is 3.0 m/s just before the
collision. If the two boxes stick together
because of packing tape on their
sides, what is their kinetic energy just before
they strike the floor?

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