if a picco z toy helicopter lifted of the ground just in hover.inside a moving train will it go to the back.?

Question

if a picco z toy helicopter lifted of the ground just in hover.inside a moving train will it go to the back.?

Answer 1

No, because the mass of air in which the helicopter is operating is moving at the same speed as the train (or else you would feel a breeze in the train). Now, if you do the same experiment on TOP of the train, where there is not enclosed mass of air, then yes, the helicopter will be blown backward as soon as it leaves the surface of the train.

Answer 2

It does indeed depend on the size of the stump and the condition of its root anchorage and the size of the helicopter doing the lifting. A customer showed me some holiday snaps the other day where a helicopter was being used to carry away very large sections of a tree being felled from the top down. These were very weighty sections of tree, so I guess in theory a helicopter may have sufficient upward thrust to lift out a stump. It isn't the usual method though... As an aside, farmers in the UK used to be able to obtain a black-powder license in order to blow tree stumps out of the ground. Now that's the way to deal with an old stump in style!

Answer 3

no, but don't open a door or window...

Answer 4

No it won't.



The reason is that the helicopter has the same 'x' velocity as the train, and it will not loose that velocity unless there is a force accelerating it towards the back of the train

Answer 5

I don't believe so, because the helicopter is moving at the same speed as the train.

Answer 6

not immediately, it would already be traveling at the speed of the train upon liftoff, but would quickly lose it's speed without rearward thrust, but if it didn't have wind resistance (if it was inside a car), it would maintain its initial forward velocity without going to the back.



remember an object will not change (lose) velocity without another force acting on it. If there is no wind resistance acting to slow it down, it won't.