______2.when is an object in motion considered to be a point object?
l. when it position changed with respect to a point of reference.
ll. when is this dance with respect to a point of reference.
lll. when it's direction change with respect to a point of reference.
lV. when it speed changed with respect to a point of reference.
a. l only b. l and ll only c. l, ll and lll d. l, ll, lll and lV
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Answer:
IV. when it's speed changes with respect to a point of reference.