Question

A roller coaster with a potential energy of 235,200 J sits at the top of a 30 m high hill. What is the mass of the roller coaster?

Answer 1

Answer:784 kg

Explanation:

P.E. = 235200 J

Distance ( Height ) = 30 m

g = 10 m/s

P.E. = mgh

235200 = mx10x30

235200/300 =m

784 kg = mass of the roller coaster

Answer 2

Answer:

784

Explanation: