A boy weighing 60 kgf stands on a platform of dimension 2.5 × 0.5. What pressure in pascal does it exert?
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Explanation:
weight of boy = 60 kgf = 600 N
area of platform = 2.5cm × 0.5 cm
= 1.25 cm²
= 1.25 × 10-⁴ m²
Pressure exerts in platform = weight/area
= 600 N/1.25 × 10-⁴ m²
= 480 × 10⁴ N/m²
= 4.80 × 10⁶ N/m²
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