A 2 100-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 5.00 m before coming into contact with the top of the beam, and it drives the beam 12.0 cm farther into the ground before coming to rest. Using energy considerations, calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest. Answer : 878 kN up

Q: 17. GO A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the…

A: The given values are,

Q: A constant 81.8-N force acts on a 3.70-kg box. The box initially is moving at 11.3 m/s in the…

A: Applying Work-Kinetic Energy theorem:- Work done by the force(W)=Change in KE of the object Hence,…

Q: The figure shows a thin rod, of length L = 1.60 m and negligible mass, that can pivot about one end…

A:

Q: Coasting along at 8.60 m/s, a 60.0 kg bicyclist on a 7.60 kg bicycle encounters a small hill. If the…

A: Given information:Weight of the bicyclist (W) = 60 kgWeight of the cycle (w) = 7.60 kgInitial speed…

Q: How much work was done by the person against Gravity?

A: Initially the center of mass is at a height, The center of mass ends at a height of

Q: 7.51 * A system of two paint Figure P7.51 buckets connected by a light- weight rope is released from…

A: Apply the conservation of energy equation. Here, hb is used for the heavy bucket, lb is used for…

Q: A pail in a water well is hoisted by means of a frictionless winch, which consists of a spool and a…

A: Given, height lifted , h = 24.0 m time, t = 15.0 s mass of pail of water , m = 6.60 kg  We know that…

Q: At location A, a 44.0-kg sledder has a height of 28.0 m above the bottom of the hill and possesses…

A:

Q: A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle…

A: Given :- mass of water skier = 61.2 kg initial velocity = 5.1m/s speed increases to 12.1 m/s

Q: "Rocket Man" has a propulsion unit strapped to his back. He starts from rest on the ground, fires…

A: Let u be the initial velocity, v be the final velocity at a height h, m be the mass of the…

Q: An applied force of 20 N i pushes an object that is initially at rest over a horizontal surface. The…

A: Applied force, F = 20 N iInitially, object is at rest.i.e. Initial velocity of object, u = 0…

Q: "Rocket Man" has a propulsion unit strapped to his back. He starts from rest on the ground, fires…

A: Let u be the initial velocity, v be the final velocity at a height h, m be the mass of the…

Q: A boy in a pedal car is moving at a speed of 1.40 m/s at the start of a 2.45 m high and 12.4 m long…

A: (given) Total mass (m) = 60 kg Height (h1) =2.45 m Height (h2) = 0 m Initial velocity ( vi) = 1.40…

Q: The only force acting on a 4.2 kg canister that is moving in an xy plane has a magnitude of 3.6 N.…

A: According to the work-energy theorem, the change in the kinetic energy of the canister equals to the…