Question

# A particle is moving eastwards with a velocity of $$5\ ms^{-1}$$. In $$10\ s$$, the velocity changes to $$5\ ms^{-1}$$ northwards. The average acceleration in time is:

A
Zero
B
1/2 ms2 towards north-west
C
1/2 ms2 towards north-west
D
1/2 ms2 towards north

Solution

## The correct option is B $$1/\sqrt { 2 }\ ms^{-2}$$ towards north-west$$v=\sqrt{5^2+5^2}=5\sqrt 2m/s$$Average acceleration $$\cfrac{5\sqrt 2}{10}=\cfrac{1}{\sqrt 2}$$ towards north-west.Physics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More