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

Question

Smart Achievers · Accepted Answer

(4)

Force will be same for all the surfaces.

Solution

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

1 8 cm × 15 cm surface

2 50 cm × 15 cm surface

3 8 cm × 50 cm surface

4 force is same for all surfaces

Ans.
(4)

Force will be same for all the surfaces.

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