Which of the following are true for projectile motion? check all that apply
a. objects in projectile motion have only a horizontal acceleration.
b. gravity is the only force acting on an object in projectile motion.
c. projectile motion always involves motion in two dimensions.
d. for an object to be in projectile motion, air resistance must be too
small to matter.

B.For an object to be in projectile motion, air resistance must be too small to matter.
D.Gravity is the only force acting on an object in projectile motion.

·Gravity is the only force acting on an object in projectile motion.

·For an object to be in projectile motion, air resistance must be too small to matter

·Projectile motion always involves motion in two dimensions

When is this

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