A wooden box of 3.5kg has a base area of 7 square meter. The pressure exerted by it on the floor is ----
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Answer:
We know
Pressure=Force/Area
Pressure=F/7
we don't know Force,but we know
Force= Mass×Acceleration
mass of the object is 3.5kg
and Acceleration?
it's given that "exerted by it on the floor is "
that is it's acceleration due to gravity, therefore the acceleration is 9.8 m/s.
thus
Force=3.5×9.8
Force=34.30 N
And now finding pressure exerted
Pressure=Force/Area
Pressure=34.3/7
Pressure=4.9 N/m²
Converting to Pa(Pascal),the SI unit of Pressure
that is
49000Pa
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