Question

The velocity of a moving body changes at a constant rate from 50m/s to 20m/s in 3sec. Find acceleration.

Answer 1

Acceleration = change in velocity / total time taken to undertake that dynamics
= 20-50
= -30
-30/3
-10 m/sec^2

Answer 2

                                                          hii
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here
                     initaial velocity of car(u)=50 m/s
                    Final velocity of car(V)=20 m/s
                    Time(t)=3sec
                    Accleration[a]=?

We know that accleration=  v-u
                                                 t

                                        =>  20-50
                                                  3
            
                                     =       -30
                                                 3

                                          => -10 m/s²
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