Over a time interval of 2.16 years, the velocity of a
Chapter , Problem 16(choose chapter or problem)
Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses direction, changing from 120.9 km/s to 218.5 km/s. Find (a) the total change in the planets velocity (in m/s) and (b) its average acceleration (in m/s2 ) during this interval. Include the correct algebraic sign with your answers to convey the directions of the velocity and the acceleration.
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