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May 29, 2015

Homework Help: Physics

Posted by applebottom on Saturday, October 30, 2010 at 9:12pm.

A hot-air balloon has a total mass of 720 kg. It accelerates downwards (towards the ground) at 2.7m/s^2 even though an upwards lift force in acting on it.

Find
a:Find the lift force acting on the balloon

B)What must be the total mass that needs to be thrown overboard if the operator on the hot-air balloon decides to accelerate upwards at 3.6 m/s^2 ?
Assume the upwards lift force remains the same.

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