Question

a point has three simultaneous velocities u,u&u which are inclined at 120 degree to each other. find resultant velocity and magnitude​

Answer 1

Explanation:

ANSWER

v

1

=u

1

i

^

−gt

j

^

v

2

=−u

2

i

^

−gt

j

^

forv

1

⊥v

2

v

ˉ

1

.

v

ˉ

2

=0

(u

1

i

^

−gt

j

^

).(−u

2

i

^

−gt

j

^

)=0

−u

1

u

2

+g

2

t

2

=0

g

2

t

2

=u

1

u

2

t=

g

u

1

u

2