When does Olaf have more momentum? formula When he is skating with his entire body (20kg) at 12m/s.
Or
When he is chasing his head. His mass is now only 13 kg but he is moving 7 m/s faster.

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

Which is an advantage of subdividing science into different areas?

Explain how a step-down transformer makes electricity safe for use in homes