Question

. An object is launched straight up into the air from the ground
with an initial vertical velocity of 30 m/s. The object rises to a
highest point approximately 45 m above the ground in 3 sec-
onds; it then falls back to the ground in 3 more seconds, im-
pacting with a speed of 30 m/s.
(a) The average speed of the object during the 6-second in-
terval is closest to
(A) 0 m/s. (B) 5 m/s. (C) 15 m/s. (D) 30 m/s.
(b) The magnitude of the average velocity during the 6-sec-
ond interval is closest to
(A) 0 m/s. (B) 5 m/s. (C) 15 m/s. (D) 30 m/s.
* 71​

Answer 1

Answer:

All of them option a is correct

Explanation:

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