A heavy vase rests motionless on the floor. The vase is experiencing its weight downward and an equally strong force upward from the floor. We know that these two forces on the vase are equal in amount but oppositely directed because
A. for every action, there is an equal but oppositely directed reaction. [6.4% picked]
B. the vase has zero velocity. [2.4% picked]
C. Newton's third law requires that forces always appear in equal but oppositely directed pairs. [30.3% picked]
D. the vase is not accelerating so the two forces must sum to zero. [60.8% picked]
Answer:D
A heavy vase rests motionless on the floor. The vase is experiencing its weight downward and an equally strong force upward from the floor. We know that these two forces on the vase are equal in amount but oppositely directed because
A. for every action, there is an equal but oppositely directed reaction. [6.4% picked] B. the vase has zero velocity. [2.4% picked] C. Newton's third law requires that forces always appear in equal but oppositely directed pairs. [30.3% picked] D. the vase is not accelerating so the two forces must sum to zero. [60.8% picked]