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A car travelling at 20 km/h speeds up to 60 km/h in 30 minutes. Its acceleration is: |
| Answer» ACCELERATION = 80km/h² Explanation:Given,Initial velocity of a car = 20km/h Final velocity = 60km/h We need to FIND its acceleration.We know, Where,v(final velocity) = 60km/hu(initial velocity) = 20km/ht(time) = 30min or, 0.5h Substituting the given values, ∴ The car ACCELERATES 80km/h²______________________Formula USED : Where, v denotes the final velocity, u is the initial velocity and t is time taken.S. I. unit of acceleration is m/s² | |