Show that vertical circular motion is non uniform circular motion

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

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