An iron block of sides 50cm xx 8cm xx 15cm has to be pushed along the floor. The force required will be minimum when the surface in contact with ground is

An iron block of sides 50cm xx 8cm xx 15cm has to be pushed along the

1.	An iron block of sides 50cm xx 8cm xx 15cm has to be pushed along the floor. The force required will be minimum when the surface in contact with ground is
Answer» `8"cm"xx15"cm surface"` `50"cm"xx15"cm surface"` `8"cm"xx50"cm surface"` FORCE is same for all surface Solution :Force will be same for all the surfaces.