## Why is there a 1/2 in the elastic energy formula?

Since this line forms the hypotenuse of a triangle, the area (and thus kinetic energy) is 1/2 * base * height, where the base is the velocity, and the height is momentum, or mv. Hence K = 1/2(v)(mv) = 1/2mv^2.

### What is the equation 1 2kx 2?

Other than Hooke’s Law, the equation for the potential energy function, U=1/2kx^2, is essentially used when determining the spring potential energy.

#### Why is there a 1/2 in the drag equation?

The half 12 that also appears in the equation, is – as others also point out – due to the drag coefficient Cd being neatly written as Cd=DAq, where q=12ρv2 is the dynamic pressure, an important aerodynamic property.

**What is the equation for kinetic energy?**

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

**Is kinetic energy always 1 2mv 2?**

## How do you solve EPE?

Energy stored in a spring

- Work is done when a spring is extended or compressed . Elastic potential energy is stored in the spring.
- The elastic potential energy stored can be calculated using the equation:
- elastic potential energy = 0.5 × spring constant × (extension) 2

### How do you calculate eel?

How to calculate the potential energy of a spring

- Determine the spring constant k .
- Decide how far you want to stretch or compress your spring.
- Substitute these values to the spring potential energy formula: U = ½kΔx2 .
- Calculate the energy.

#### Where can I find viscous drag?

Fs = 6πrηv, where r is the radius of the object, η is the viscosity of the fluid, and v is the object’s velocity.

**Why does a pendulum come to a stop?**

The pendulum stops eventually because of air resistance. The pendulum loses energy because of friction. Only in a theoretical situation when there is no friction the pendulum will oscillate forever.

**How do you use the half and double method?**

Using the half and double method, we can halve one side of the multiplication as long as we double the other – and the answer remains the same. So,

## How to multiply mixed numbers with fractions?

How to Multiply Mixed Numbers with Fractions 1 Convert the mixed numbers to improper fractions 2 Use the algebraic formula for multiplying of fractions: a/b 3 c/d = ac / bd 4 Reduce fractions and simplify if possible See More….

### What is the function of the multiply fractions calculator?

The multiply fractions calculator will multiply fractions and reduce the fraction to its simplest form. Click the blue arrow to submit.

#### What is 34×5 using the half and double method?

Using the half and double method, we can halve one side of the multiplication as long as we double the other – and the answer remains the same. 34 x 5 =? But after using the half and double method it becomes: