How do you find height when you know mass and kinetic energy?

Answer 1

....actually you can... there are several formulas to follow but it is not too difficult.

First, the formula for Kinetic energy is as follows: KE=(1/2)mv^2 If you have mass and Kinetic Energy (KE) then you can solve for velocity(V).

Second, use velocity(V) to solve the formula V=g(t) for time, where V= velocity, g= gravity, which is 9.8 and t=time.

Finally, solve for height by using the formula H= (1/2)gt^2

This should give you the answer you need. :)

Answer 2

The energy is the object's kinetic energy T plus its gravitational potential energy Ug.


On Earth, Ug = G ME m / (RE + h) where G is Newton's gravitational constant, ME is the mass of the Earth, m is the mass of the object, RE is the radius of the earth and h is the object's height above the ground.


Close to the Earth's surface (i.e., h << RE), this formula can be Taylor expanded about h = RE to obtain the approximate result Ug = m g h where m and h have the same meaning and g is equal to G ME / RE2 (~9.81 m/s2).

The kinetic energy of a point object is always given by T = m v2 / 2 where v is the objects velocity.

So, for a point object a height h << RE above the Earth's surface with velocity v, it's total energy would be m v2 / 2 + m g h.

Answer 3

To calculate kinetic energy, use the following formula: KE = 1/2m•v2, where m is mass in kg and and v is velocity in m/s. The resulting unit is the Joule, which is 1kg•m2/s2.

Answer 4

Height isn't related to kinetic energy (it may be related to potential energy). Kinetic energy is related to mass and velocity.

Answer 5

PE = m•g•h, where m is mass in kg, g is 9.8m/s2, and h is height in meters.