physics question?

Question

is it possible for all or part of an object in free fall to accelerate at a rate greater than g? why or why not?

Answer 1

Greater than gravity - no if the only force acting on the object is gravity.
Less than gravity - yes due to wind resistance

Of course eliminating wind resistance ALL objects fall / accelerate at the same rate.

Answer 2

The only possible way (other than having a rocket attached to its a*s) is that your objects has and accelerated spinning.
Imagine a system like this:A steel shaft having a propeller in the middle and 2 vertical wings at the ends to ensure the shaft remains horizontal through the fall.
When an idiot makes such system and throw it out of a hot air baloon, the system starts a free fall.
the linear acceleration is g for the whole system but the propeller starts an accelerated spin movement.
this means the parts of our system located in the blades of the propeller, have a nonlinear acceleration which means all to all the acceleration of the blades are more than just g.

If you can't get what I'm saying then imagine this situation:
You are sitting in a car travelling 65mph.of course one will say you and your car don't have any speed relative to each other.i.e, you and your car are stable with respect to each other and have no motion. Objects stable with respect to each other have same level of kinetik energy.It means you can't be hurt by your own car hitting you while you are driving it. That is true but tell me my friend, do you have balls to touch the tyre of a car travelling 65mph?
Now you got what I mean.when a car travelling 40 mph, whole car is travelling 40mph but the tires have a spinning motion in addition to the 40mph linear motion.
Now if the car starts accelerating, the spinning of the tires are also accelerated.so the tires are moving 1_ an accelerated linear motion as a part of the car and 2_ an accelerated spinal motion.
you may think these two are so different that actually can not be added up to each other.
Then do this:
Use a brush and put a white mark on the outer surface of your tyre.
Sit in your car and start an accelerated motion.At the moment that the white mark is in the highest point,it can be assumed that the mark is travelling a linear motion for a very short moment.In that moment the travelling path of the mark is parallel to the road surface and so are the velocity and acceleration vectors.In that particular momment,the white mark has the overall acceleration of the car AND the spinal acceleration which appears as a linear acceleration at that momment. Adding these two together, you'll have an acceleration higher than the acceleration of the car.
The very same thing can be done on your propeller.
So what you have asked IS possible.

Good Luck and don't try touching the tire of a car travelling 65mph.It's bad for your health. ;)

Answer 3

It depends on the resistance. So it does not accelerate or it has a negative acceleration rate which is decelerate.

While in a vacuum space, all objects fall at the same rate, if and only if, gravity is the only force that acts on the objects.

Answer 4

If an object rotates during its free falling some parts can have different accelerations than g.

Answer 5

"Free fall" means no external forces are acting on the object. The only force is that of gravity, which will cause the object to accelerate at g regardless of it's size or mass.

Answer 6

if it's a free fall , and no one has put an extra force, so it will accelerate at the rate of g not greater
but if someone put an extra force, u have to add it to the force of gravity, so it'll be greater or less than g, (depends on the direction of this extra force)
if u dont understand me, send me and i'll explain it
bye

Answer 7

Free fall but greater than G? no. The only force affecting it downward is gravity. The only other force affecting it is drag force but that is in the other direction. I cant think of a forece that is different but in the same directino of G.

Answer 8

If it has a rocket motor attached, yes. But if it is in true free fall, then no.

Answer 9

in a FREE FALL, NO.

Answer 10

I do not think so