# How to get the variables m,v^2,h and g

• epicsauce1137
In summary, the value of m (mass) can be calculated using the formula m = (F/a), where F is the force applied and a is the acceleration. The value of v^2 (velocity squared) can be calculated using the formula v^2 = u^2 + 2as, where u is the initial velocity, a is the acceleration, and s is the distance traveled. The value of h (height) can be calculated using the formula h = v^2/2g, where v is the velocity and g is the gravitational acceleration (9.8 m/s^2). The value of g (gravitational acceleration) is approximately 9.8 m/s^2 on Earth, but may vary depending
epicsauce1137

## Homework Statement

How can you get m and v^2 in the equation KE=1/2 mv^2?
How can you get m,g,h in the equation PE=mgh

## Homework Equations

PE=mgh
KE=mv^2

epicsauce1137 said:

## Homework Statement

How can you get m and v^2 in the equation KE=1/2 mv^2?
How can you get m,g,h in the equation PE=mgh

## Homework Equations

PE=mgh
KE=mv^2
Hello epicsauce1137. Welcome to PF !

give an example of a problem you're trying to solve using KE and/or PE .

## 1. How do I calculate the value of m?

The variable m represents mass. It can be calculated using the formula m = (F/a), where F is the force applied and a is the acceleration. The unit of mass is typically measured in kilograms (kg).

## 2. What is the formula for finding v^2?

The variable v^2 represents velocity squared. It can be calculated using the formula v^2 = u^2 + 2as, where u is the initial velocity, a is the acceleration, and s is the distance traveled. The unit of velocity is typically measured in meters per second (m/s).

## 3. How do I determine the value of h?

The variable h represents height. It can be calculated using the formula h = v^2/2g, where v is the velocity and g is the gravitational acceleration (9.8 m/s^2). The unit of height is typically measured in meters (m).

## 4. What is the value of g?

The variable g represents gravitational acceleration. Its value is approximately 9.8 m/s^2 on Earth, but may vary slightly depending on the location and altitude. It is a constant value used in calculations involving free fall and projectile motion.

## 5. How do I convert units for these variables?

To convert units, use the appropriate conversion factor. For example, to convert from feet to meters, use the conversion factor 1 ft = 0.3048 m. Make sure to use the correct units in your calculations to ensure accurate results.

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