mass of coaster is 800kg

second hill is 70m
do you take 800*70*9.8=548800
Please help

Yes. use units, here it will be energy in Joules

Could you show me how my answer would look please, and would you happen to know aside from the mass what other measurement (numerical value) need to know to calculate GPE?

To calculate the potential energy at the top of the hill, you can use the formula:

Potential Energy = mass * gravitational acceleration * height

Let's calculate it step by step:

1. The mass of the coaster is 800 kg.
2. The height of the hill is given as 70 m.
3. The gravitational acceleration is approximately 9.8 m/s^2.

Now, let's substitute these values into the formula:

Potential Energy = 800 kg * 9.8 m/s^2 * 70 m

Evaluating the expression:

Potential Energy = 548,800 Joules

Therefore, the potential energy of the coaster at the top of the second hill would be 548,800 Joules.