Advertisements
Advertisements
प्रश्न
A boy weighing 60 kgf stands on platform of dimensions 2.5 cm x 0.5 cm. What pressure in pascal does he exert?
Advertisements
उत्तर
Force = Thrust = Weight = 60 kgf
= 60 x 10 = 600 N
Area of platform = 2.5 cm x 0.5 cm
`=2.5/100m xx0.5/100 m = 25/1000xx5/1000`
=`1/40xx1/200=1/8000m^2`
Pressure P = `F/ A = ( 600N)/((1m^2)/8000)`
`= (600 xx 8000)/1` =
= 4800000
=`4800000/10xx10`
= 4.8 × 106 Pa
APPEARS IN
संबंधित प्रश्न
The unit of pressure is .........
The unit of pressure is
State the unit of thrust
How is the thrust related to pressure?
Why do camels or elephants have broad feet?
How much thrust will be required to exert a pressure of 20,000 Pa on an area of 1 cm2.
Pressure can be increased by decreasing the force.
Explain the variation of the pressure exerted by liquid with respect to the following factors.
- Amount of liquid
- Depth
- Shape and size of the container
Give reasons why:
a single nail pricking the body is painful when compared to lying on a bed of nails.
The net force in a particular direction is called ______.
