Falling objects drop with an average acceleration of 9.8 m/sec/sec. if an object falls from a tall building, how long will it take before it reaches a speed of 49 m/sec?

The answer for this is 5 seconds.

Here's an explanation:

The average acceleration as an object falls in 9.8m/second. The question is asking how long it will take before the acceleration is 49m/second. Since it's 9.8m/second, then you'll have to divide 49 by 9.8 to find the answer. The quotient of this is 5, so that's your answer.

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d