# Physics

posted by .

From the expression E = mgh for potential energy, how can I express the unit of energy, the joule, in terms of kilograms, metres and seconds? could anyone explain to me what this question is asking me for cuz I don't understand it, to be honest? thanks

• Physics -

E=mgh=kg*m/s^2*m= kg*m^2/s^2= joule
so the joule is a "derived" unit, that is, it is not a fundamental unit.

• Physics -

thank you bobpursley

## Similar Questions

1. ### math

the formula for potential energy is p=mgh, where p is potential energy, m is mass, g is gravity, and h is height. what expression can be used to represent g?
2. ### math

the formula for potential energy is p= mgh, where Pis potential energy, m is mass, g is gravity, and h is height. which expression can be used to represent g?
3. ### physics

A 2 kg rock is released from rest at a height of 29 m. Ignore air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights;20m 15m 9m * physics - bobpursley, …
4. ### physics

A 500g ball is dropped into a well that is 10m deep. A)What is the ball's potential energy before it is dropped?
5. ### physics

Show how Bernoulli’s energy equation for a fluid can be derived by considering how the work done by the fluid moving from point 1 to point 2 is equal to the energy gained or lost by the fluid. You can assume the potential energy …
6. ### Physics ~Conservation of Energy~

1.) At one point in its fall, an object (m=2.5 kg.) has a kinetic energy of 5 J(joule) and a potential energy of 10 J. a) what is the total energy of the system?
7. ### Astronomy

For an object of mass m in a circular orbit of radius R under the gravitational influence of a center of mass M, find an expression for the total energy, the sum of kinetic and potential energy (with potential energy at infinite distance …
8. ### Physics

For a 0.1-kg frog to jump to a height of 80cm requires how much energy in joules?
9. ### physics multiple choice MCQ 7- i need help please @all respective sir & bro

the unit of energy in S.I units is? a. watt b. joule c. joule/s d. joule/m e. joule m
10. ### Science

Use the terms solar, kinetic, electrical and potential energy gravitational energy to explain energy transformations used for renewable energy systems

More Similar Questions