Q. 514.5( 11 Votes )

# A girl is wearing a pair of flat shoes. She weighs 550 N. The area of contact of one shoe with the ground is 160 cm^{2}. What pressure will be exerted by the girl on the ground?

(a) If she stands on two feet?

(b) If she stands on one foot?

Answer :

Force, F = 550N Area of contact of one shoe = 160 cm^{2} = 160 x 10^{-4} m^{2}

Area of contact with two shoes = 160 x 2 = 320 cm^{2} = 320 x 10^{-4} m^{2}

(a) If the girl stand on two feet, Pressure =

= 550/ 320 * 10^{-4}

= 17187.5 N/m^{2}

(b) If she stands on one foot, Pressure =

= 550/ 160 * 10^{-4}

= 34375 N/m^{2}

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

PREVIOUSA pressure of 10 Pa acts on an area of 3.0 m2. What is the force acting on the area? What force will be exerted by the application of same pressure if the area is made one-third?NEXTCalculate the density of an object of volume 3 m3 and mass 9 kg. State whether this object will float or sink in water. Give reason for your answer.

Related Videos

Get to Know About Kepler's Law47 mins

Variation of Acceleration due to Gravity39 mins

What is Upthrust and Buoyancy?40 mins

Know More About Archimedes Principle49 mins

Become a Master in Universal Law of Gravitation !!47 mins

Foundation | Most Challenging Numericals on Gravitation38 mins

Gravitation Part-141 mins

Quiz | Practice Session Gravitation31 mins

Quiz | Kaun Banega Champion (KBC) Gravitation33 mins

Get to Know More About Free Fall45 mins

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation

RELATED QUESTIONS :

Name the quantity whose one of the units is Pascal (Pa).

Lakhmir Singh & Manjit Kaur - PhysicsA body lying on a mattress stands up on it. He observes that the mattress is now depressed deeper down. Why does this happen?

Together with ScienceNo one can sink in the Dead Sea. Do you agree? Give reason.

Together with Science