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If a carʹs velocity changes from 50 km/h to 10 km/h in 4 seconds, its acceleration...

If a carʹs velocity changes from 50 km/h to 10 km/h in 4 seconds, its acceleration is

a) 0 N

b) slightly less than 50 N

c) 50 N

d) slightly more than 50 N

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