physics.

posted by .

: When the mass hits the pile, it has kinetic energy. This energy is transformed into other forms of energy as the speed of the falling mass rapidly reduces to zero. As this happens, the pile is forced a small distance into the ground.
question: Explain how a large force is produced when the pile is driven a short distance into the ground ?
any help

  • physics. -

    The "large force" consists of soil pressure (at the end)and friction (on the sides) of the pile as it pentrates the ground.

    Most of the kinetic energy of the mass is transformed to work
    W = (force) x (penetration distance)
    as the pile penetrates the ground, and that work is converted to ground heating and rock breaking.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    When a ball falls down from a height h, its P.E is transformed into K.E as it's free-falling, BUT..... wot abt objects not falling freely?
  2. Physical Science

    Can someone please check these answers for me?
  3. physics

    a pile drive has a 413 kg block that is lifted 1.4m and then dropped onto the pile being driven into the ground. suppose that it takes 24ms to stop when it hits the pile. what is the average force exerted on the pile by the pile driver?
  4. Physics

    I need help with part b, c, and d please! A 45 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 1.4 * sin( 4 * t ) where y is measured in meters and t in seconds. -------------------------------------------------------------------------------- …
  5. Physics

    I need help with b... I found that k=.750880 for part a but I can't figure out what y would be to get potential energy. A 52 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) …
  6. physics

    A pile driver of mass 1000kg,hits a post 3m below it.It moves the post 10mm.Assuming gravity=10m/s,what is the kinetic energy of the pile driver?
  7. science

    please help me im stuck on this last one !! .A car driver accelerates to a speed of 35 mph and then takes her foot of the gas pedal.Even though she does not press the brake pedal at any time,she eventually rolls to a stop.which of …
  8. science (check new answer)

    please check my answser .A car driver accelerates to a speed of 35 mph and then takes her foot of the gas pedal.Even though she does not press the brake pedal at any time,she eventually rolls to a stop.which of the following most likely …
  9. physics

    An Olympic high jumper starts running. As she approaches the bar, she pushes off the ground and lifts her body off the ground and flies over the bar. She then falls down into a large padding on the ground. Describe the energy transformation: …
  10. Science

    2.)A car driver accelerates to a speed of 35 mph and then takes her foot of the gas pedal.Even though she does not press the brake pedal at any time,she eventually rolls to a stop.which of the following most likely causes the car to …

More Similar Questions