The path of one projectile as seen by an observer on another projectile is a/an:

The path of a projectile is

The pathe of a projectile is

Assertion: The path of one projectile as seen for another projectile is a striaght line. Reason: Two projectiles projected with same speed at angles alpha and (90^(@)-alpha) have same range.

Assertion: The path of one projectile as seen for another projectile is a striaght line. Reason: Two projectiles projected with same speed at angles alpha and (90^(@)-alpha) have same range.

Assertion: The path of one projectile as seen for another projectile is a striaght line. Reason: Two projectiles projected with same speed at angles alpha and (90^(@)-alpha) have same range.

The path of one projectile as seen from another projectile is a (if horizontal components of velocities are equal)

(A): The path followed by one projectile as observed by another projectile is a straight line in uniform gravitation field. (R): The relative velocity between two projectiles at a given place doesn't change with time. Because their relative acceleration is zero.