A cannonball is shot vertically upward with a positive initial velocity. At the max height of the cannonball, which of the following statements are true? Air resistance is negligible.
A. The acceleration of the cannonball is positive.
B. The velocity of the cannonball is positive.
C. The velocity of the cannonball is negative.
D. The acceleration of the cannonball is negative.
Answer:A
A cannonball is shot vertically upward with a positive initial velocity. At the max height of the cannonball, which of the following statements are true? Air resistance is negligible.
A. The acceleration of the cannonball is positive. B. The velocity of the cannonball is positive. C. The velocity of the cannonball is negative. D. The acceleration of the cannonball is negative.