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A balloon of mass M is descending at a c...

A balloon of mass `M` is descending at a constant acceleration `alpha`. When a mass m is released from the balloon it starts rising with the same acceleration `alpha` Assuming that its volume does not change what is the value of m. ?

A

`(alpha)/(alpha+g)M`

B

`(2alpha)/(alpha+g)M`

C

`(alpha+g)/(alpha)M`

D

`(alpha+g)/(2alpha)M`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • A balloons of mass M is descending at a constant acceleration alpha . When a mass m is released from the balloon, it starts rising. With the same acceleration alpha . Assuming that its volumes does not change, what is the valule of m?

    A
    `(alpha)/(alpha + g) M`
    B
    `(2alpha)/(alpha + g) M`
    C
    `(alpha + g)/(alpha)M`
    D
    `(alpha + g)/(2 alpha)M`

  • A balloon of mass m is rising up with an acceleration a.

    A
    The upthrust on the balloon is `m(g+a)`.
    B
    The upthrust on the balloon is ma.
    C
    `ma//(2a+g)` mass must be detached in order to double its acceleration.
    D
    m/2 mass must be detached in order to double its acceleration.

  • A balloon with mass m is descending down with an acceleration a where a

    A
    `(2ma)/(g+a)`
    B
    `(2ma)/(g-a)`
    C
    `(ma)/(g-a)`
    D
    `(ma)/(g-a)`

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