KinematicsHard
Question
A body is moving with velocity 30 m/s towards east. After 10 second its velocity becomes 40 m/s towards north. The average acceleration of the body is
Options
A.1 ms-2
B.7 ms-2
C.√7 ms-2
D.5 ms-2
Solution

Velocity towards east direction,
Velocity towards north direction,
Change in velocity,

∴
= 50 m/sAverage acceleration,


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