What effect does the force of gravity have on the horizontal velocity of the porjectile?Explain?

Answer 1

It depends. If the gravity is a theoretical paralell field (or the experiment is of micro scale and within relatively slow speeds): it has no visible effects on the horizontal velocity component. However, if it is a point-convergence gravity field: it rotates the horizontal velocity component with time.

The gravity force vector divided by the scalar mass makes the gravitational acceleration vector. This acceleration vector is added (geometrically) to the projectile's velocity vector to make the future total velocity vector at one unit of time later. If the gravity force translates and always be parallel to its previous vectors and hence the starting perpendicularity between the gravity force and the horizontal component preserves with time, the horizontal component has no acceleration to rescale it and hence does not change. In constrast, if the gravity force rotates with time to keep pointing to the center of the earth, the effect over time is to rotate the total velocity vector downwards, hence gradually shrinking the ORIGINAL horizontal component of the velocity vector relative to the ORIGINAL spatial coordinate frame.

Give me a thumb-down if I made it too confusing :)

Answer 2

Zero effect. Because it is a downward force that acts perpendicularly to the horizontal motion of the object, it has no horizontal component. ( If you think of forces as always having a vertical and horizontal component. )

Since there is no horizontal component of the gravitational force acting on the object, it does not accelerate the object or otherwise.

Extra note: I think the sciquest dude is trying to talk about gravity acting as a centripetal force, like how it keeps satellites in orbit around earth etc. If he was confusing you.

Answer 3

The force of gravity has no effect on horizontal velocity. So when you thrown a projectile , if you neglect the air resistance the horizontal velocity is constant.

Answer 4

Consider this:

If I shot a gun in a vaccum and my best friend pro pitcher threw a baseball straight out, which would fall first....

They both would fall at the same time, since the same gravity acts on them both, the bullet and the baseball....

Meaning they would both hit the ground at the same time, both the bullet and the baseball. The bullet might travel farther, since it had the higher velocity, but since they both are subject to the same gravity, both hit the ground at the same time....The bullet has the lesser arc of travel, which means my friend the pitcher has an easier time of throwing a curveball......

Weird, but true, I love science......

Answer 5

the arc of the earth, air pressure, the more surface area on the top the quicker it falls,its harder to get up than lay down