chemistry .....please help :)
posted by lalt on .
Sitting in a chairlift, Rebecca has a gravitational potential energy of 5,997.6 J. If Rebecca has a mass of 51 kg, how high off the ground is the lift?
A. 6 m
B. 12 m
C. 118 m
D. 612 m

E = m*g*z
m = mass in kg
g = 9.8 m/s^2
z = height in meters
Solve for z.
You can check your calculation here.
http://www.ajdesigner.com/phppotentialenergy/potential_energy_equation.php