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olya-2409 [2.1K]
2 years ago
11

To the nearest tenth of a second, how much time would it take the penny to hit the

Mathematics
2 answers:
lyudmila [28]2 years ago
6 0

B. 0.6 seconds

Because they want you to round to the nearest 10th and 0 is the ground.

vovangra [49]2 years ago
4 0

Answer:

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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we can establish a ratio since triangle MNQ is equal to Triangle MLP.

your answer is B 9 inches

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3 years ago
he length of a rectangle is three times the width. The perimeter is 240 inches. Find the length and the width.
sammy [17]

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