- #1

- 22

- 0

## Homework Statement

The total weight o a gas filled balloon is 1500N.THE BALLOON RAISES AT CONSTANT SPEED OF 10m/s.Calculate the resultant force acting on the balloon?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter VICKZZA
- Start date

- #1

- 22

- 0

The total weight o a gas filled balloon is 1500N.THE BALLOON RAISES AT CONSTANT SPEED OF 10m/s.Calculate the resultant force acting on the balloon?

- #2

cepheid

Staff Emeritus

Science Advisor

Gold Member

- 5,192

- 38

## Homework Statement

The total weight o a gas filled balloon is 1500N.THE BALLOON RAISES AT CONSTANT SPEED OF 10m/s.Calculate the resultant force acting on the balloon?

## Homework Equations

## The Attempt at a Solution

If the speed is constant, what does that mean about the acceleration? What does Newton's 2nd Law therefore say about the net force on the object?

- #3

- 22

- 0

as given that the speed is constant ,so there is no acceleration in the ballon.and according to newton 2nd law,force acting on the object is directly proportional to mass of the objectand accelaration,now if we consider this, the net force will be equal to zero.

but i am still confused,am i right?

- #4

cepheid

Staff Emeritus

Science Advisor

Gold Member

- 5,192

- 38

but i am still confused,am i right?

Yeah that's right. The net force has to be 0. So something has to provide lift to counteract the weight of the balloon. In this case it's the buoyant force that does so (i.e. the balloon floats).

- #5

- 22

- 0

but how much magnitude of buoyant foce will be there when balloon continously arises up?

- #6

SteamKing

Staff Emeritus

Science Advisor

Homework Helper

- 12,798

- 1,670

Hmm. Balloon weighs 1500 N. Rises with constant velocity. Net Force = 0. What is the buoyant force???? Eureka!, Mr. Archimedes!

Share: