an iron rod is 60 cm long,20 cm wide and 20 cm thick . it weighs 48 Newton and is lying on the ground .find the pressure exerted by the iron rod on the ground
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Explanation:
Pressure = Force ÷ area
= 40N ÷ 0.6 m × 0.2 m × 0.2 m
= 40N ÷ 0.024m
pressure = 1666.666
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