Answer:
3000J
Explanation:
Given parameters:
mass = 400kg
speed = 15m/s
Unknown:
P.E at the highest point of the roller coaster = ?
Solution:
Due to the law of conservation of energy, the potential energy at the highest point can be solved using the formula of the kinetic energy
Potential energy = [tex]\frac{1}{2}[/tex] mv²
m is the mass
v is the velocity
Potential energy = [tex]\frac{1}{2}[/tex] x 400 x 15 = 3000J
