Ask a New Question

The pile driver struck the piling with a speed of 20 m/s. At what height did the pile driver hammer have to be lifted for it to fall freely and attain that speed before striking the piling?

Show steps please!!!

1 answer

potential energy at start=Kenergy at end

mgh=1/2 m v^2
h= 1/2 v^2/g

Ask a New Question or answer this question.

Similar Questions

A piling supporting a bridge sits so that 1/4 of the piling is in the sand, 150 feet is in the water, and 3/5 of the piling is
1. 1 answer
whaat happens to the potential energy lost by hammer of pile driver when it falls through a distance and drives a piling into
1. 2 answers
A pile driver of mass 125kg falls through a height of 80m before striking the pile. What is it's momentum at the instance it
1. 1 answer
how do i solve this, i tried dividing the mass by the height, but its wrongA 407-kg pile driver is raised 15 m above ground. (a)
1. 0 answers

more similar questions