You can walk on water if you wear large shoes shaped like boats.calculate the length of shoes that will support you?assume that will support you:assume that each shoe is 0.3m *0.3m in the cross section

1 Answer
Apr 5, 2018

This is what I get

Explanation:

Assuming your mass be#=40\ kg#.
At a particular instant of time, while walking on water, one of your feet is raised and total weight is on the other foot. As such as you walk on water each boat like shoe needs to support your weight.

From the Law of Flotation we know that for a floating object, the weight of the object equals the weight of the liquid displaced by it.

Let #L# be the length of each shoe. Setting up the equation

#"Volume of shoe"xx"Density of water"xxg="Your weight"#

Taking Density of water as #1000\ kgm^-3 , g# being acceleration due to gravity and inserting values in the equation we get

#(Lxx0.3xx0.3)1000xxg =40g#
#=>L =40/(0.09xx1000)#
#=>L=0.bar4\ m#