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 [IIT 1982; AFMC 1999; Pb PET 2000; JIPMER 2001, 02]

\[\frac{1}{\sqrt{2}}\,\,m\text{/}{{s}^{\text{2}}}\] toward north-east

\[\frac{1}{\sqrt{2}}\,\,m\text{/}{{s}^{\text{2}}}\] toward north-west

\[\frac{1}{2}\,\,m\text{/}{{s}^{\text{2}}}\]toward north-west

A particle is moving eastwards with velocity of 5 m/s. In 10 sec the v

1.	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 [IIT 1982; AFMC 1999; Pb PET 2000; JIPMER 2001, 02]
A.	Zero
B.	\[\frac{1}{\sqrt{2}}\,\,m\text{/}{{s}^{\text{2}}}\] toward north-west
C.	\[\frac{1}{\sqrt{2}}\,\,m\text{/}{{s}^{\text{2}}}\] toward north-east
D.	\[\frac{1}{2}\,\,m\text{/}{{s}^{\text{2}}}\]toward north-west
Answer» C. \[\frac{1}{\sqrt{2}}\,\,m\text{/}{{s}^{\text{2}}}\] toward north-east