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Please include all units and conversions in calculations.Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses in direction, changing from +20.9 km/s to -18.5 km/s. Find (a) its average acceleration (in m/s^2) during this interval (b) its average acceleration (in m/s*2) during a persons lifetime (70 years).

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  • Category:- Physics
  • Reference No.:- M9997008

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