3 years ago

A car travels from rest (0) to 60 m/s in 5 seconds. What is its acceleration?

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

3 0

Answer:

Step-by-step explanation:

The formula for acceleration is velocity over time, and when solved, 60 divided by 5 is 12.

Hope this helps!

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Find the area of a triangle whose two sides are 12 inches and 14 inches long, and has a perimeter of 34 inches.

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$\huge\boxed{A=3\sqrt{255}\ in^2\approx47.91\ in^2}$

Step-by-step explanation:

We have two sides

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$c=P-a-b$

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Use the Heron's formula:

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$p=\dfrac{34}{2}=17\ (in)\\\\A=\sqrt{17(17-12)(17-14)(17-8)}=\sqrt{(17)(5)(3)(9)}\\\\=\sqrt{9}\cdot\sqrt{(17)(5)(3)}=3\sqrt{255}\ (in^2)\approx47.91\ (in^2)$

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