Question

calculate the area of a dart which hits the dartboard with a force of 10N and pressure of 2000N/cm2

Answer 1

P=F÷A

2000÷100=10/area

2000×area=10×100

2000area=1000

Area=1000÷2000

Area=1/2

Area=0.5

Answer 2

Given that,

Force, F = 10 N

Pressure, $P=2000\ N/cm^2$

To find,

Area of a dart

Solution,

The force acting per unit area is called pressure exerted on it. Its mathematical form is given by :

$P=\dfrac{F}{A}$

A is area of dart

$A=\dfrac{F}{P}\\\\A=\dfrac{10\ N}{2000\ N/cm^2}\\\\A=0.005\ cm^2$

So, the area of a dart is $0.005\ cm^2$.

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