Top Answer

Kinetic energy

The formula for kinetic energy, Ek, could not be simpler.

Ek = (1/2)mv2, where m is mass (in kg) and v is velocity (in m s-1). If you prefer, you could write Ek = mv2/2.

or, 810j=1/2*20Kg*v2

or,v2=810j*2/20Kg

or,v=sqrt of 81

so,v=9m s-1

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Kinetic energy is measured in joules

Joules, as energy is measured in joules.

27 Joules

As the object falls, it PEG or potential gravitational energy becomes kinetic energy. Before falling, it has for example 10 joules of PEG and 0 joules of Kinetic energy. As it falls, the PEG decreases and the kinetic energy increases, until it hits the ground, when all the energy is dispersed as sound, heat, etc.

joules

Kinetic energy is measured in the units of joules. Mostly all energy units are measured in joules.

The car's kinetic energy is 900,000 joules.

Joules, all energy is measured in joules.

From what I understand: PE - Potential Energy (mgh) KE - Kinetic Energy (1/2 mv2) If one dismisses the friction with air (conservation of energy), a loss of 7 joules for potential energy means a gain of 7 Joules in kinetic energy.

Joules (J)

joules

Kinetic energy is measured in (J) Joules. J=Kgm2/S2

The object has a mass of 2kg. When velocity is tripled the kinetic energy becomes 225 joules.

No, kinetic energy is measured in Joules (J), as this is the SI unit for energy.

Kinetic energy. It is measured in Joules.

They are both measured in Joules

The object's kinetic energy is 2,500 joules.

Joules

they are both measured in joules

To find joules, you have to multiply the force or newtons by distance in meters.

Kinetic energy of atoms is still an energy therefore it is generally measured in Joules (J)

The unit of Kinetic Energy is Joule. So, 125 KE can be written as 125 Joules.

The object's kinetic energy is 6,000 joules.

The bike's kinetic energy is 45 joules.

The bike's kinetic energy is 63 joules.