Question

A particle is moving eastwards with a velocity of 5m/s in 10s , the velocity changes to 5 m/s northwards . the average acceleration in this time is [AIEEE 2005] ​

Answer 1

Answer:

Average acceleration = Change in Velocity / Total time interval

If, the initial velocity is said to be 5 i^

, that is in +ve x direction and final velocity can be said to be 5 j^ as in +ve y direction being northwards

We can say, change in velocity = 5j^-5i^ = 5(j^-i^)

so,

Average acceleration = 5(j^-i^)/10 = 1/2(j^-i^)

Hope this helps you !