Speed and momentum of a pile driver
Hi I'm in my second week of a physics class I decided to tackle over the summer semester. I am having a bit of trouble with th following problem.
Q. A 150-kg pile driver falls from a height of 7.5 m to hit a piling.
a) What is its speeb as it hits the piling?
b) With what momentum does it hit the piling?
I know that the force of gravity has to be introduced in to the equation. But I'm a bit lost from there. I don't expect an answer. I would just like some help to get going in the right direction.
Thanks,
Eric