Question

A 2-kg fish is swimming with a speed of 0.1 m/s. What is its KE?

Answer 1

The kinetic energy of the 2-kg fish swimming at a speed of 0.1 m/s is 0.01 Joules.

Step-by-step explanation:

To calculate the kinetic energy (KE) of an object, we can use the equation KE = 0.5 * mass * velocity^2. In this case, the fish has a mass of 2 kg and a speed of 0.1 m/s. Plugging in these values into the equation, we get:

KE = 0.5 * 2 kg * (0.1 m/s)^2 = 0.01 Joules

Therefore, the kinetic energy of the fish is 0.01 Joules.

Answer 2

0.01 J

Step-by-step explanation:

To calculate the kinetic energy (K) of the fish, we'll use the formula for kinetic energy, which is:

`\boxed{\left\begin{array}{ccc}\text{\underline{Kinetic Energy:}}\\\\ K = (1)/(2)mv^2 \\\\\text{Where:}\\\bullet \ K \ \text{is the kinetic energy}\\\bullet \ m \ \text{is the mass of the object}\\\bullet \ v \ \text{is the velocity of the object}\end{array}\right}`

We are given:

• m = 2 kg
• v = 0.1 m/s

Plug these into the formula above and solve:

`\Longrightarrow K = (1)/(2)(2 \text{ kg})(0.1 \text{ m/s})^2\\\\\\\\\Longrightarrow K = 0.01 \ \frac{\text{kg $\cdot$ m$^2$}}{s^2$}\\\\\\\\\therefore K = \boxed{0.01 \text{ J}}`

Thus, the answer is found. Energy is measured in joules (J).