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Chapter 1: Q3DQ (page 92)

A projectile moves in a parabolic path without air resistance. Is there any point at whicha鈫�is parallel tov鈫�? Perpendicular tov鈫�? Explain

Short Answer

Expert verified

The accelerationa鈫�will never parallel tov鈫�and perpendicular to the flight's highest point.

Step by step solution

01

Concept/Significance of projectile motion.

Projectile motion is the movement of a projectile. The motion of a body under the only action of gravity is taught in general under this topic (vertically downwards).

02

Determination of point at which a→ is parallel to v→.

The path of a projectile is a parabola in the given by,

The accelerationa鈫� will never be parallel to v鈫�, and it will always be perpendicular tov鈫� at the maximum height. Because an is the downward acceleration caused by gravity, it will never be parallel to v. At no time does the projectile's velocity point down.

Thus, the accelerationa鈫� will never parallel tov鈫� and perpendicular to the flight's highest point.

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