Answer Happy

11. Ten seconds after being dropped moving with a speed of conds after being dropped from rest, a free-falling object will be vf=vitat a. about 10 m/s. b. about 50 m/s. c. about 100 m/s. d. more than 12. A baseball pitcher delivers a fast ball. During the throw, the speed of the Dall increases from 0 to 30.0 m/s over a time of 0.100 seconds. The average acceleration of the baseball is_ m/s. a. 3.00 b. 30.0 C. 300. d. 3000 e. none of these 13. On takeoff, a rocket accelerates from rest at a rate of 50.0 m/s" for exactly 1 minute. The rocket's speed after this minute of steady acceleration will be m/s. e. none of these a. 50.0 b. 500. d. 3.60 x 10 C. 3.00 x 10 14. When a rock is dropped, it will accelerate downward at a rate of 9.8 m/s?. If the same rock is thrown downward (instead of being dropped from rest), its acceleration will be (Ignore air resistance effects.)