Friday

July 25, 2014

July 25, 2014

Posted by **jeff** on Sunday, April 19, 2009 at 12:31am.

I know we use the conservation of mechanical energy to solve this my question is will my initial velocity be 2.00 m/s or will it be zero because iam at rest in the ballon.

- physics -
**TchrWill**, Sunday, April 19, 2009 at 10:23amTechnically, when you detach yourself from the balloon, you have an initial upward velocity of 2m/s which, after 0.20sec, you will rise .204m.

Ignoring this, the time to reach the ground derives from h = Vot + gt^2/2 or 1000 = o(t) + 9.8t^2/2 yielding a falling time of 14.28 sec.

The velocity with which you hit the ground derives from Vf = Vo + 9.8t = 0 + 9.8(14.28) = 140m/s.

The "exact" answer combines the two results.

**Related Questions**

physics - a hot-air balloon having initial velocity vi as it ascends. Then, a ...

physics - 1.A hot air balloon is rising upwards at a constant velocity of 5m.s ...

Physics - A hot-air balloon is accelerating upward under the influence of two ...

Physics - A hot-air balloon is accelerating upward under the influence of two ...

Physics - A hot-air balloon is rising upwards at a constant velocity of 5m.s . ...

physics - a hot air balloon rise above the ground, accelerating upwards at a ...

Chemistry - The total mass that can be lifted by a balloon is given by the ...

Chemistry - The total mass that can be lifted by a balloon is given by the ...

physics - A hot-air balloon plus cargo has a mass of 1740 {\rm kg} and a volume ...

physics - A hot-air balloon plus cargo has a mass of 1740 {\rm kg} and a volume ...