What is the difference between molar mass and molecular mass. Speed and momentum of a pile driver ask me help desk. A rod blue of length 2m and mass of 1kg can freely pivot about its center orange dot which is connected to a frictionless track purple running in the y direction. Support of excavation soe is an essential element of the success of underground structures in the boston area, and requires firsthand knowledge of the characteristics of local soils and marine clays. Pile driven into the ground by a hammer question help. How many of molar mass of fluorine are in molecule of carbon tetrafluorid cf4.
What is the final major form of energy after the pile is driven into the ground. The rod is positioned at 45 degrees to the track, and a ball of mass 1kg travelling at 15 msec strikes the rod at 0. Gce study buddy the best o level revision resource. A piledriver hammer of mass 150 kg falls freely through a distance of 5 m to strike a pile of mass 400 kg and drives it 75 mm into the ground. A piledriver hammer of mass 150 kg falls freely through a distance of 5 m to strike a pile of mass 400 kg and drives it 2. Since m appears on both sides of the equation, it will cancel out and the above simplifies to.
A pile driver hammer of mass 150kg falls freely through a distance of 5 metres to strike a pile of mass 400kg and drives it 75 mm into the ground. I am having a bit of trouble with th following problem. A pile driver hammer of mass 150kg falls freely through a distance of 5m to strike a pile of mass 400kg and drive. A hammer of mass 1kg falls freely from a height of 2 m calculate i the velocity and ii the ke of the hammer just before it touches the ground does the velocity of hammer depend on the mass of hammer science work and energy. Determine the average force resistance exerted by the ground by making use of. Jan 16, 2017 a pile driver hammer of mass 150 kg falls freely through a distance of 5m to strike a pile of mass 400kg and drives it 0. A hammer of mass 1kg falls freely from a height of 2 m. What is the power of the car if the total resistant forces acting on it is 400n. As the name implies, it was developed to analyze pile driving and evaluate pile driveability, including the range of stresses imparted to the pile, hammer efficiency, etc. A pile driver hammer of mass 150 kg falls freely through a distance of 5 m to strike a pile of mass 400 kg and drives it 2. A pile driver of the type shown in the figure to the right drops a mass of kg from rest. The use of the pile driving analyzer for installing pile. A pile driver hammer of mass 160kg falls freely through a distance of 6m to strike a pile of mass 410 kg and drives it 0.
The pile driving analyzer pda was developed in the 1970s as a method to directly measure dynamic pile response during driving. A pile driving hammer of mass 500 kg falls 5 m from rest onto a pile of mass 150 kg. A a piledriver hammer of mass 500kg falls freely through a. Hi im in my second week of a physics class i decided to tackle over the summer semester. A metal ball of mass 2kg is allowed to fall freely from rest. Upon impact, the ram is seen to move with the pile with no appreciable rebound. Determine the distance the pile is driven into the sand after one blow if the sand offers a frictional resistance against the pile of 18 kn. A hammer of mass 100kg falls 4 metres onto a pile of mass 300kg and drives it 80mm into the ground. Compare and contrast the use of dalemberts principle with the principle of conservation of energy when. White is expert in all manner of earth support, underpinning and foundation work. Deep foundation contractors, pile driving contractors, boston. The mass falls through a distance of 5 m before striking the pile.
A a piledriver hammer of mass 500kg falls freely through a distance of 5m to strike a pile of mass 200kg and drives it answered by a verified engineer we use cookies to give you the best possible experience on our website. How to find the velocity of an object before impact how to. A body of mass 11kg falls freely from rest from a height of 15m above the ground. Determine the impulse which the hammer imparts on the pile if the pile is surrounded entirely by loose sand so that after striking, the hammer does not rebound off the pile. Solved a 150kg pile driver falls from a height of 7. Solved a pile driving hammer of mass 500 kg falls 5 m from. Many physics departments have a commercial device consisting of a metal mass about 4.
Finding an answer with full working so that i can understand. Solved dalemberts principle and conservation of energy. Sep 14, 2005 the pile driver is a classic laboratory exercise that traditionally utilizes relationships from mechanics, such as work and energy, to determine the force involved in driving a nail. May 30, 2014 a pile driver hammer of mass 160kg falls freely through a distance of 6m to strike a pile of mass 410 kg and drives it 0. The velocity with which the hammer strikes the pile use the conservation of energy principle b. A piledriver hammer of mass 150kg falls freely through a distance of 5m to strike a pile of mass 400kg and drives 0. The 650kg hammer of a drophammer pile driver falls from a height of 1. What s the difference between molermass and molecular mass. Electric free fall winch for pile driver lifting hammer, find complete details about electric free fall winch for pile driver lifting hammer, pile driver,hand winch,marine winch from winches supplier or manufacturerpingyang construction hoisting machinery co. The mass of the pile driver is 2,500kg and it is dropped through a height of 8. The ram of a pile driver has a mass of 800 kg and is released from rest 2 m above the top of the 2400kg pile. Mar 01, 2012 a a piledriver hammer of mass 500kg falls freely through a distance of 5m to strike a pile of mass 200kg and drives it 50mm into the ground.
Mar 04, 2012 a a piledriver hammer of mass 500kg falls freely through a distance of 5m to strike a pile of mass 200kg and drives it 50mm into the ground. The pile p has a mass of 800 kg and is beino driven into loose sand using the 300kg hammer c which is dropped a distance of 0. A pile driver hammer of mass 170kg falls freely through a distance of 8m to strike a pile of mass 420 kg and drives it 0. What is the kinetic energy of the driver just before it hits. Assuming perfectly plastic impact, determine the average resistance of the ground to penetration. A a piledriver hammer of mass 500kg falls freely through. The 650kg hammer of a drophammer pile driver falls. Solved a 2 100kg pile driver is used to drive solutioninn.
If the inertial acceleration a of a point on the hoisting. A hammer of a pile driver is lifted to a height of 2m in 0. A 2 100kg pile driver is used to drive a steel ibeam into the ground. Dec 26, 20 a pile driver hammer of mass 150kg falls freely through a distance of 5 metres to strike a pile of mass 400kg and drives it 75 mm into the ground. The velocity immediately after the impactuse the conservation of momentum principle. An 800kg rigid pile p is driven into the ground using a 300kk hammer h. A piledriver hammer of mass 150 kg falls freely through a.
Neglecting air resistance and assuming conservation of momentum on impact with no rebound, determine. Jun 21, 2009 a pile driver falls freely from a height of 4. A pile driver hammer of mass 150 kg falls freely through a distance a distance of 5m to strike a pile of mass 400kg and it drives it 75mm into the ground. Ic1 pile driver ic1 pile driver the 450 kg ram of a pile. If the mass of the hammer is 500kg, the power required for the lifting is a. Electric free fall winch for pile driver lifting hammer buy. A 750 kg hammer of a drop hammer pile driver falls from a height of 1.