Determine which of the following moving objects obey the equationsof projectile

Question

Determine which of the following moving objects obey the equationsof projectile motion developed in this chapter. 1. A ballis thrown in an arbitrary direction.
2. A jet airplane crosses thesky with its engines thrusting the plane forward.
3. A rocket leaves the launchpad.
4. A rocket moves through thesky after its engines have failed.
5. A stone is thrown underwater.
1. A ballis thrown in an arbitrary direction.
2. A jet airplane crosses thesky with its engines thrusting the plane forward.
3. A rocket leaves the launchpad.
4. A rocket moves through thesky after its engines have failed.
5. A stone is thrown underwater.

Explanation / Answer

1. A ball is thrown in anarbitrary direction. (good, only affected by original velocity andgravity) 2.A jet airplane crosses the sky with its engines thrusting the planeforward.(engines are providing trust) 3. A rocket leaves thelaunch pad.(the engines are providing trust so is notfalling) 4. A rocket moves through thesky after its engines have failed. (good, only affected by originalvelocity and gravity) 5. A stone is thrownunder water.(water is going to affect the velocity inwhich the stone descends)

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