Mathematics: To the nearest tenth of a second, how much time would it take the penny to hit the ground? a. 0.5 seconds b. 0.6 seconds c. 0.7 seconds d. 0.8 seconds

To the nearest tenth of a second, how much time

sarah192002

11.03.2022

Option B. 0.6 seconds

Step-by-step explanation:

As given in the table at time t = 0 the maximum height of the penny is 2 meters.

In simpler way we can say the penny has been throw from a height of 2 meters.

Now this process can be represented by the equation of motion

$h=ut+\frac{1}{2}gt^{2}$

For free fall u = 0

So $h=\frac{1}{2}gt^{2}$

where h = 2 meters

and g = 9.81 m/sec²

By putting these values in the equation

$2=\frac{1}{2}(9.81)(t)^{2}=4.905t^{2}$

$t^{2}=\frac{2}{4.905}=0.4077$

t = √0.4077 = 0.6385 seconds

or t = 0.6 seconds

Answer is option B. 0.6 seconds

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nick607

12.06.2020

100

Step-by-step explanation:

he would have to sell 100 upper seats ot break even

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