A pressure of 80 Pa acts on a surface of area 4m2
. Calculate the force applied on
the surface.
Answers
Answer:
Correct option is
B
25Pa
Given, froce=100N
and area=4m
2
∴pressure=
area
force
=
4m
2
100N
=25Pa
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SIMILAR QUESTIONS
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Calculate the pressure exerted by a book of size 10cm×20cm if the mass of the book is 100 g.
Medium
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>
An elephant weighing 40,000 N stands on one foot of area 1000 cm
2
whereas a girl weighing 400 N is standing on one 'stiletto' heel of area 1 cm
2
.
(a) Which of the two, elephant or girl, exerts a larger force on the ground and by how much?
(b) What pressure is exerted on the ground by the elephant standing on one foot?
(c) What pressure is exerted on the ground by the girl standing on one heel?
(d) Which of the two exerts larger pressure on the ground : elephant or girl?
(e) What is the ratio of pressure exerted by the girl
Pressure =force /area
Force =pressure x area
4x80 =320