Question

A book rests on a desk. Its cover measures an area of 15cm and 20cm. It exerts a pressure of 40pa. Determine the mass of the book. (Use g=10n/kg)

Answer 1

Answer:

The mass of the book is 1.2 kilogram.

Explanation:

Given, pressure = 40 pascal

and, area = 15 × 20 = 300 cm² = 0.03 m²

Pressure = Thrust / Area => 40 = Thrust / 0.03

=> Thrust = 40 × 0.03 = 1.2 N (answer).

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