Question

1.A body is moving with a uniform speed X then its class 9

Answer 1

For quarter revolution

△

v

=v

2

(−

i

^

)−v

1

j

^

or △

v

=−v

i

^

−v

j

^

On calculating the magnitude

△v=

v

2

+v

2

=

2

v

Also α=tan

−1

v

v

=45

∘

△

v

=

2

v southwest.

Answer 2

Your answer is v southwest
Hope it help you