what is center of mass?
how do you find an objects center of mass?
how does an objects center of mass effect it when tilting?
How do you calculate the time period for a pendulum?
What is a simple pendulum?
what are some common examples of every day pendulums?
What is circular motion
What is terminal velocity?
What is resultant force?
what is the turning effect of a force called?
what must be balanced if an object is not turning?
when is work done?
when is something acting elasticity?