Question

A block of iron of mass 7.5 kg and of dimensions 12 cm ×8 cm×10 cm is kept on a table top on its base of side 12 cm × 8 cm . Calculate : (a) thrust and (b) pressure exerted on the table top . Take 1 kgf = 10 N

Answer 1

see attachment....hope it will help u

Answer 2

Hi there !!!

We are given the mass of the iron block as 7.5 kg

We know that ,
Thrust = Force

But ,
force = mg

So , Thrust = mg
= 7.5 × 10
= 75 N
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Area of the surface of iron block kept on the table = 12 × 8 = 96 cm² = 0.0096 m²

We know that ,

Pressure = Thrust / Area
= 75 / 0.0096
= 7812.5 Pa