Question

(4) A roller coaster is at the top of a 72 m hill and has a mass of 700 kg. The coaster this moment) has energy. Calculate it.​

Answer 1

493,420 Joules

Step-by-step explanation:

Potential energy of the roller coaster

PE = mgh

Where

m = mass (kg)

g = gravitation (9.8 m/s²)

h = height

PE = 72 x 700 x 9.8 (in some cases 10)

PE = 493,420 J

If g = 10

PE = 504,000 J

Answer 2

here

Step-by-step explanation: