Here goes a Parachute !

Classical Mechanics Level 1

A man jumped from a flying plane with his parachute. He then opened up his parachute and started to come down towards the earth. Which force is helping the man to come down slowly and land safely rather than a crash ?

All of These Air Resistance Buoyant Force Electrostatic Force

Vinit Doke by Vinit Doke , 44, India

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1 solution

Since he is following down gravitational force pulls him down, as a result of parachute (after opening its shape resembles like that of Umbrella )resists the man from falling on a sudden due to attraction of gravitational force of Earth..

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Great! But isn't buoyant force responsible ,too? Air is a fluid,isn't it?

Yuki Kuriyama - 6 years, 7 months ago

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According to Archimedes Buoyancy (magnitude) is equal to fluid displaced by the same volume of object. Since air can also exert buoyant force on object therefore buoyancy should can't come here as explained

Nitin Srivastava - 6 years, 5 months ago

NO ,THE CLEAR DEFINITION FOR A BUOYANT FORCE IS THAT THE OPPOSITE FORCE WHICH IS APPLIED BY THE WATER OVER THE OBJECT IN WATER . Bf = the weight of water increase

Palash Som - 6 years, 7 months ago

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buoyancy is an upward force exerted by a fluid that opposes the weight of an immersed object.

Anitus Raj - 6 years, 5 months ago

http://en.m.wikipedia.org/wiki/Buoyancy

Anitus Raj - 6 years, 5 months ago

Thanks a lot ! Guess I'd gotten it wrong before..!

Yuki Kuriyama - 6 years, 7 months ago

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