# NCERT Exemplar Solutions Class 9 Science Solutions for Gravitation - Exercise in Chapter 10 - Gravitation

Question 14 Gravitation - Exercise

A girl stands on a box having 60 cm length, 40 cm breadth, and 20 cm width in three ways. In which of the following cases, the pressure exerted by the brick will be

(a) maximum when length and breadth form the base

(b) maximum when breadth and width form the base

(c) maximum when width and length form the base

(d) the same in all the above three cases

The answer is (b) maximum when breadth and width form the base

Explanation:

The surface area and pressure are inversely proportional. Pressure will be maximum when the surface area is minimum hence the answer is maximum when breadth and width form the base.

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