Interested to Buy Any Domain ? << Click Here >> for more details...
when does one exert greater pressure on ground during
walking or standing? why ?
what happends to the period of a simple pendulum taken into
a deep mine
- 3 Answers
- 15682 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
We human beings walk by lifting one leg, placing it in the
front, then lifting the rear leg, and placing it in the
front; and the cycle continues. Since pressure is nothing
but force per unit area, thus during standing, we place our
weight on both legs in general, and during walking, we place
our weight on one leg most of the time. Thus, the area
through which our weight acts during walking is less than
the same during standing. So, we exert greater pressure
during walking.
Inside a deep mine, the accelaration due to gravity,g,
decreases..the rest is there in formula.
| Is This Answer Correct ? | 90 Yes | 21 No |
Answer / rishabh
A walking human will exert more than double his standing pressure.
Weight is equal to mass times gravity (W=mg) but weight is a force, so (W=Fweight=mg). So when you stand your total force is just mass times gravity. But when you walk you are generating a downward acceleration when you step, you are 'pushing ' down with your leg (this is more obvious when you run). So not only is there a force down from standing but an additional force due to the rate of change of the downward momentum of you leg. So momentum is equal to mass times velocity (p=mv), but your momentum is constantly changing with respect to time so (dp/dt=mdv/dt + vdm/dt, where dv/dt is equal to a). Now since we know your changing momentum is causing a force we may say that F=dp/dt. Now lets put all this back together! Ftotal= Fwieght + Fmomentum then
Ftotal= mg + ma! And that is why walking causes more pressure on the earth than standing.
| Is This Answer Correct ? | 14 Yes | 21 No |
For measuring weight of 2cm3 piece of density 4gm/cm3 which spring balance is best suited what is the range and least count how we calculate
What are the applications of nmr spectroscopy?
Explain why does a tea kettle sing?
Explain what is the difference between diffraction and interference?
What is meant by normal modes?
a car is travelling at 72kmph, and if that car slows down to 60kmph it takes an extra 1 hour to cover that same distance. at 72kmph, how long did it take for the car to cover that distance?
What happens to the velocity of sound with the rise of temperature?
what is the mean of g= 9.8m/s2. waht is the mean of unit m/s2
What is Reduction ?
How do you calculate shaft power?
while climbing a hill we bend forward please explain the reason for bending
Dust is removed from a carpet, if we strike it with a stick, why ?
General Physics 
