11. a ball from rest starts to fall and hits the ground 1.5 seconds later with a velocity of 14.7 m/s . what is the acceleration of the ball?
a. -9.8 m/s2
b. 9.8 m/s2
c. 16.2 m/s
d. 22.1 m/s2
13. which of the above objects is changing in velocity?
a. I and 11 c. II and III
b. I and III D. I, II, and , III
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Answer⬇
11. C. 16.2 m/s
13. C. ll and lll
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Explanation:
11 is c
13 is c also hwhehhee