13. A particle is moving with velocity 5 m/s towards east and its velocity changes to 5 m/s north in 10 sec.Find the acceleration(A) v2 N-W1BN-W42(C)N-E12(D) 2 N-Ethn hodh attains a velocity of

13. A particle is moving with velocity 5 m/s towards east and its velo

1.	13. A particle is moving with velocity 5 m/s towards east and its velocity changes to 5 m/s north in 10 sec.Find the acceleration(A) v2 N-W1BN-W42(C)N-E12(D) 2 N-Ethn hodh attains a velocity of
Answer» <p>Intial velocity=v1= 5m/seast wards ^\|\|^then after time t=10sec \|\| towards north 5m/sv2 =5m/s north wards .⇒⇒⇒⇒⇒⇒\| towards east 5m/sVresultant =√v1²+v2² =√25+25 =5√2</p><p>acceleration a=velocity/time = 5√2/10 =√2/2 ×√2/√2 =1/√2 towards n-w</p>