A particle moving, eastwards with a velocity of 5m/s. In 10s, its velocity changes to 5m/s northwards. The average acceleration in this time is
A
Zero
B
1√2m/s2 towards north-west
C
1√2m/s2 towards north-east
D
12m/s2 towards north-west
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Solution
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Initial velocity, u=5m/s eastwards
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