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2 years ago

9

Kinetic energy can be calculated using the formula KE = 1/2mv2. What is the kinetic energy of a bicycle that has a mass of 20 kg

and is traveling at a velocity of 10 m/sec?

1 answer:

Alenkasestr [34]2 years ago

8 0

<h3>Answer:</h3>

KE = 1000 J

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Physics</u>

<u>Energy</u>

Kinetic Energy Formula: $\displaystyle KE = \frac{1}{2}mv^2$

Energy is in Joules
m is mass (in kg)
v is velocity (in m/s)

<h3>Explanation:</h3>

<u>Step 1: Define</u>

m = 20 kg

v = 10 m/s

<u>Step 2: Find KE</u>

Substitute [KE]: $\displaystyle KE = \frac{1}{2}(20)(10)^2$
Exponents: $\displaystyle KE = \frac{1}{2}(20)(100)$
Multiply: $\displaystyle KE = (10)(100)$
Multiply: $\displaystyle KE = 1000$

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