Question

- A child builds a tower from three blocks. The blocks are
uniform cubes of side 2 cm. The blocks are initially all lying
on the same horizontal surface and each block has a mass
of 0.1 kg. The work done by the child is
(a) 4J
(b) 0.04 J
(c) 6J
(d) 0.06 J
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Answer 1

Answer:

d 0.06J is the right answer