what is projectile motion?
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Projectile motion is a form of motion experienced by an object or particle that is thrown near the Earth's surface and moves along a curved path under the action of gravity only. This curved path was shown by Galileo to be a parabola.
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☆ if an object is given an initial velocity in any direction and then allowed to travel freely under gravity, the motion is called a projectile motion
☆ projectile motion is a form of motion experience by an object or particles that is projected near the Earth's surface and moves along a curved path under the action of gravity only.
☆ in particular, the effects of the air resistance are assumed to be negligible
☆ this curved path was shown by Galileo to be a parabola, but may also be in line the special case when it is directly upwards
☆ The study of such types of motion are called ballistics and such a trajectory is called a ballistic trajectory
☆ There are generally three types of projectile motion
● horizontal projectile motion
● oblique projectile motion
● inclined plane projectile motion
☆ The only force of significance that acts on the object gravity, which acts downward, thus imparting to the object a downward acceleration.
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