brianquinnholop6049c
19.08.2021 •
Mathematics
Which expression simplifies to 5/3?
A./30
B./45
C./75
D./15
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Ответ:
we use the following formula to calculate height, 'h', under the effect of gravity:
h = vt - (1/2)gt^2, where g = 9.8m/s^2 and 't' represents time in seconds
8 ft/s * 0.3048 = 2.4384 m/s
we treat mass as inconsequential to the problem, considering only the effect of initial velocity and gravitational pull
to find his 'hang time' we solve for h=0, knowing that t=0 will be the first value (before the jump):
0 = 8(0.3048)t - (9.8/2)t^2
solving for 't' we have t=0.497
the 'hang time' will be approximately 0.5 seconds, or 1/2 of a second
the maximum height will be 0.2488m, or 0.816 feet, or 9.8 inches
on the moon, the hang time and height will increase by a factor of 6
hang time: approximately 3 seconds on the moon
maximum height: approximately 2.4 feet