Questions
A rectangular block of dimensions 6m × 4m × 2m and of density 1.5 gm/c.c is lying on horizontal ground with the face of largest area in contact with the ground. The work done in arranging it with its smallest area in contact with the ground is, (g=10m) .
detailed solution
Correct option is B
m = mass of block = (6 x 4 x 2) x 1.5 x 103 kg⇒ m = 72000 kg .: W = mg.Δh = 72 x 103 x 10 x (3-1) J = 1440 KJ.Talk to our academic expert!
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