Homework Help: Physics

Posted by Brandon on Monday, September 28, 2009 at 8:03pm.

A research balloon of total mass 445 kg is descending vertically with a downward acceleration of 1.3 m/s2. How much ballast must be thrown from the car to give the balloon an upward acceleration equal to 1.5 m/s2, presuming that the upward lift of the balloon does not change.

physics - Anonymous, Tuesday, February 2, 2010 at 10:29pm
hi

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