Can rotational force of the earth have any effect on flying projectiles?

[Buckleymanor]

Yes, that is the explanation for a inertial frame, where there is no Coriolis force.

Not the time of flight of the object is crucial, but how high it flies. It has the same tangential speed as the surface, but with greater height a lower angular speed, so it stays behind the Earth's rotation.

When a projectile or bullet is fired up vertically the height to which it flies would be dependent on the time of it's flight.The longer it took the higher it's flight.
So the height is crucial but the time of flight should tell you how high it flew.

 

[D H]

There would be no difference in the distance the balls traveled on Earth.

Buckleymanor, this is incorrect. Read posts #16, #18, and #29.

 

[Buckleymanor]

Buckleymanor, this is incorrect. Read posts #16, #18, and #29.

Yes I agree, your explanation #29 explains in some detail.
What I was not taking into consideration was the highly eliptical orbit the bullet is put in caused by the rotation of the Earth when the bullet is fired eastwards.
Obviosly this effects the time of flight and should be taken into consideration(which you have).
Thanks for your explanations.
KB

 

[Buckleymanor]

Final remark: The European Space Agency launch site is the Guiana Space Centre, 5o9'25" North latitude. The preferred launch direction is due east for the simple reason that doing so maximizes the extra boost the rockets get for free thanks to the Earth's rotation.

Presume the time of launch is important.
At certain times the launch direction might be pointing east but would be pointing in the wrong direction due to the Earths orbit around the Sun.
So any extra boost would be minimized.
Thanks.KB.

 

[D H]

The Sun is pretty much irrelevant when it comes to the energy needed to launch a vehicle into low Earth orbit. The Sun does have a small, perturbative effect on vehicles in low Earth orbit. This effect is small but cumulative. The cumulative effect during the 10 to 15 minutes needed to go from the launch platform to orbit insertion is incredibly small, so small that it is not taken into account. The uncertainties in atmospheric drag and thruster performance vastly overwhelm this tiny effect.

For a vehicle going on to other planets, the direction in which it is pointing when it performs its Earth departure burn is very critical. An analogous situation to launching east versus west applies.