Explain with steps:-
21.  A car increases its speed from 20 km/h to 50 km/h in 10 seconds its acceleration is
1 .     0 . 30   m / s 2               2 .     0 . 18   m / s 2               3 .     083   m / s 2           4 .     0 . 50   m / s 2

Dear Student, 



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