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which of the following is true? a)The free-fall acceleration vector will always point in the same...

which of the following is true?

a)The free-fall acceleration vector will always point in the same direction as the velocity vector.

b) The free-fall acceleration vector will become zero when the projectile reaches its highest point.

c) The free-fall acceleration vector always points downward.

An object is in free fall __________ (neglecting air resistance.)

a)when it is moving downward and no forces are acting on it.

b)when it is moving and the sum of all acting forces is zero.

c)when it is moving upward or downward and gravity is the only acting force.

d)only when it is moving downward and gravity is the only acting force.

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