Wiki User
∙ 14y agoDistance of fall in T seconds = 1/2 g T2
Distance of fall in 2 seconds = (1/2) (9.8) (2)2 = (4.9 x 4) = 19.6 meters
Height of this particular ball after 2 seconds = (70 - 19.6) = 50.4 meters
Wiki User
∙ 14y agotwo and a half seconds
64 seconds
Exactly 30 seconds
2,580 seconds exactly.
There are 151200 seconds in 42 hours.
The duration of Initial D is 3300.0 seconds.
64 seconds
two and a half seconds
Exactly 30 seconds
2,580 seconds exactly.
36 seconds
There are 151200 seconds in 42 hours.
The initial explosion is over in seconds
40 seconds
30 seconds: exactly as in the question.
31,550,000 (rounded to the nearest 50,000 seconds)
It depends on what you are rounding to: the nearest half, nearest thousand or whatever.