# What if there is no velocity in kinetic energy?

Contents

## What if there is no velocity in kinetic energy?

When the body falls off the ground, and it stops moving then its velocity is zero, and therefore the kinetic energy is also zero in this case.

## How do you find kinetic energy with only mass and height?

For the 50-kg sledder (includes the sled’s mass) moving at 8.0 m/s, the kinetic energy is 1600 Joules. The amount of potential energy is dependent upon mass and height and is found using the equation PE=m*g*h where g is the acceleration of gravity (approximated here to be 10 m/s/s).

## Do you need velocity to find kinetic energy?

To calculate kinetic energy: Find the square of the velocity of the object. Multiply this square by the mass of the object. The product is the kinetic energy of the object.

## How do you find the velocity?

To figure out velocity, you divide the distance by the time it takes to travel that same distance, then you add your direction to it. For example, if you traveled 50 miles in 1 hour going west, then your velocity would be 50 miles/1 hour westwards, or 50 mph westwards.

## How do you find kinetic energy with only mass?

In classical mechanics, kinetic energy (KE) is equal to half of an object’s mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s2.

## How do you find final velocity without initial velocity?

How to calculate velocity – speed vs velocity

1. Set initial velocity to zero, you’re not moving at the beginning of the race.
2. Multiply the acceleration by time to obtain the velocity change: velocity change = 6.95 * 4 = 27.8 m/s .
3. Since the initial velocity was zero, the final velocity is equal to the change of speed.

## How do you find final kinetic energy?

because the final momentum is constrained to be p’ = m1v’1 + m2v’2 = kg m/s . Final kinetic energy KE = 1/2 m1v’12 + 1/2 m2v’22 = joules. For ordinary objects, the final kinetic energy will be less than the initial value.

## What is the formula for velocity with kinetic energy?

Equations

Equation Symbols Meaning in words
K = 1 2 m v 2 K = \dfrac{1}{2}mv^2 K=21mv2 K K K is translational kinetic energy, m is mass, and v is the magnitude of the velocity (or speed) Translational kinetic energy is directly proportional to mass and the square of the magnitude of velocity.