Question

a particle is moving eastwards witb velocity of 5m/sec.jn 10s seconds the velocity changes to 5 m/sec` northwards .the average accrleration is this time is​

Answer 1

Intial velocity=v1= 5m/seast wards                                   ^||^

then after time t=10sec                                                     || towards north 5m/s

v2 =5m/s north wards                                     .⇒⇒⇒⇒⇒⇒|

                                                                towards east 5m/s

Vresultant = √v1²+v2²

                =√25+25

                 =5 √2

acceleration a=velocity/time

                     = 5√2/10 

                      =√2/2 × √2/√2

                      =1/√2 towards n-w

Hope it helps u a lot............