A ball is thrown vertically upwards with a velocity $u$ from the balloon descending with velocity $v$ . The ball will pass by the balloon after time

\frac{u - ν}{2 g}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{2 (u + ν)}{g}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

\frac{2 u - ν}{g}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{2 u + ν}{g}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $\frac{2 (u + ν)}{g}$
${\to v}_{B B} =$ Relative velocity of ball with respect to balloon $= \to u + \to v$

$0 = - (u + v) + g t$ $⟹ t = \frac{u + v}{g}$

Total time $= \frac{2 (u + v)}{g}$

Suggest Corrections

Similar questions

Q. A ball is thrown vertically upwards with a velocity 'u' from the balloon descending with velocity v. The ball will pass by the balloon after time.

Q. An elevator is moving up with an acceleration

a {m/s}^{2}

. A person inside the lift throws the ball upwards with a velocity

u m/s

relative to himself. Then the time of flight of ball (

in sec

) will be:

Q. A truck is moving horizontally with velocity V. A ball is thrown vertically upward with velocity U at an angle

θ

to the horizontal from the truck relative to it. The horizontal range of the shell relative to the ground is

Q. A ball is thrown vertically downward with a velocity

u

from the top of a tower. It strikes the ground with a velocity

5 u

. The time taken by the ball to reach the ground is given by

A body is projected upward with a velocity u. It passes through a certain point above the ground after $t_{1}$ . From this instant, the time after which the body passes through the same point during the return journey is

Join BYJU'S Learning Program

A ball is thrown vertically upwards with a velocity u from the balloon descending with velocity v. The ball will pass by the balloon after time

The correct option is B 2(u+ν)g→vBB= Relative velocity of ball with respect to balloon =→u+→v0=−(u+v)+gt ⟹t=u+vgTotal time =2(u+v)g

A ball is thrown vertically upwards with a velocity $u$ from the balloon descending with velocity $v$ . The ball will pass by the balloon after time

The correct option is B $\frac{2 (u + ν)}{g}$
${\to v}_{B B} =$ Relative velocity of ball with respect to balloon $= \to u + \to v$

$0 = - (u + v) + g t$ $⟹ t = \frac{u + v}{g}$

Total time $= \frac{2 (u + v)}{g}$