PhysicsMedium53×since 2003Q7811A particle is moving eastwards with a velocity of 5 m/s. In 10 seconds the velocity changes to 5 m/s northwards. The average acceleration in this time isA12ms−2{1 \over 2}m{s^{ - 2}}21ms−2 towards northB12ms−2{1 \over {\sqrt 2 }}m{s^{ - 2}}21ms−2 towards north-eastC12ms−2{1 \over {\sqrt 2 }}m{s^{ - 2}}21ms−2 towards north-westDzeroCheck answerSkip