0

Guest

Courses New

What is the buoyant force on a helium balloon with a radius of 30 cm in air, if the density of air is 1.9kg per cubic metre? Show working out please.

What is the buoyant force on a helium balloon with a radius of 30 cm in air, if the density of air is 1.9kg per cubic metre? Show working out please. 

Grade:12

1 Answers

Arun
25750 Points
4 years ago
radius of helium balloon = 30 cm
density of air = 1.9 kg/m3
To find-
buoyant force
Solution-
Buoyant force = p*v*g
where p = density , v=volume , g=gravity
= {p(air)-p(he)}*v*g
={ 1.29-0.178}* 4/3πr^3*9.8
= 1.23N
Bouyant Force = 1.23N
 

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More