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1. What is the average acceleration of a car that run ms at 30 km/h east, then changes its speed to 90 km/h in 2 hours?





2. A train with initial velocity of 4.5 m/s begins to accelerate at 2.0 m/s2. What is the train's final velocity after 8 s?​


Sagot :

Answer:

  1. 90 kph
  2. 43 km/h

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