Sunday

January 25, 2015

January 25, 2015

Posted by **MB** on Wednesday, March 2, 2011 at 2:07pm.

Thanks!

A 406-kg pile driver (the figure below) is raised 12 m above ground.

(a) How much work must be done to raise the pile driver? [Answer in KJ]

(b) How much work does gravity do on the driver as it is raised? [Answer in kJ]

(c) The driver is now dropped. How much work does gravity do on the driver as it falls? [Answer in kJ]

**Answer this Question**

**Related Questions**

algebra 1 - How do you simplify this problem? I really need help.I need it step ...

Equation from Three Points*HELP* - Write the standard equation for the circle ...

chemistry - This question I really don't get it. I tried tried tried to figure ...

061689 bussines accounting and you - All i need detail how to do it i watch ...

Physics - I really don't get why I am getting this question wrong? Please can ...

Physics - I really don't get why I am getting this question wrong? Please can ...

Physics - I really don't get why I am getting this question wrong? Please can ...

Physics - I really don't get why I am getting this question wrong? Please can ...

algebra 2 - A. I need to write an equation to the linear equation..(-2,-2), (3,3...

physics help please!!! - What is the angular momentum of a 2.5 kg uniform ...