Work
Pro Problems > Physics > Energy and Work > WorkFeatured Pro Problems
![](/images/icons/directories/xwork.png,qx=5.pagespeed.ic.OfA75R8pVf.png)
What happens when the astronaut bails out of his rocket just before it takes off.
![](/images/icons/directories/xwork.png,qx=5.pagespeed.ic.OfA75R8pVf.png)
A sled starts at the top of a hill and slides down. Use the information to calculate the coefficient of friction
Full Directory Listing
Blasting off from Planet X, Lift the Box, Planet X Gravity, Top of the HillBlogs on This Site
![](/images/icons/xfacebook.gif,qx=5.pagespeed.ic.tbC5TyzJ2E.png)