posted by Emily .
A solid metal ball and a hollow plastic ball
of the same external radius are released from
rest in a large vacuum chamber.
When each has fallen 1 m, they both have
4. change in potential energy.
5. kinetic energy.
... Same Speed. That is what Galileo's experiment in Pisa was all about.
plz help me in Physics practicals.
Please post specific questions separately, not as an add-on to someone else's question.
Use "Post a New Question"
While you are at it, what is a "physics practical"?