Question

1.Find force in Newton, if pressure is 10 pascal & area is 2.5 m^2.

a) 2.5
b) 25
c) 1.25
d) 12.5
2.Find Force on a rectangular plate, if dimensions of plate 2X3 m & pressure is 3.6 pascal.

a) 3.6
b) 36
c) 21.6
d) 14.4

3.Find Pressure in Pascal, if force is 2.7 N & Area is 0.5 m^2.

a) 2.7
b) 5.4
c) 0.27
d) 0.54

4.Find side of square box if force applied 360 N and pressure applied is 10 pascal.

a) 36
b) 6
c) 18
d) 12
5.Find Pressure on a square shaped box, if side of square is 5 m and force applied is 25 N.

a) 25
b) 15
c) 12.5
d) 1
​

Answer 1

Answer:

(1)as we know that pressure=force/area

10=force/2.5

force=10×2.5=25N

(2)area of rectangular plate=l×b

=2×3=6m^2

and, pressure=force/area

3.6=force/6

force=6×3.6

force=21.6N

(3) pressure=force/area

pressure=2.7/0.5

pressure=5.4Pascal

(4) pressure=force/area

10=360/area

area=36m^2

as we know that area of square=(side)^2

36=(side)^2

(6)^2=(side)^2

side=6m

(5)area of square=(side)^2

area=(5)^2

area=25m^2

pressure=force/area

pressure=25/25

pressure=1Pascal