A particle is moving eastwards with velocity of 5 m/s. In 10 sec the velocity changes to 5 m/s northwards. The average acceleration in this time is ……….. .
A. zero
B. \(\frac { 1 }{ √2 }\) m/s2 towards north – west
C. \(\frac { 1 }{ √2 }\) m/s2 towards north – east
D. \(\frac { 1 }{ 2 }\) m/s2 towards north – west
Answer:B
A particle is moving eastwards with velocity of 5 m/s. In 10 sec the velocity changes to 5 m/s northwards. The average acceleration in this time is ……….. .
A. zero B. \(\frac { 1 }{ √2 }\) m/s2 towards north – west C. \(\frac { 1 }{ √2 }\) m/s2 towards north – east D. \(\frac { 1 }{ 2 }\) m/s2 towards north – west