A 720 kg roller-coaster car starts off from Location A. Assuming friction does not impede the car's motion, what will be the change in its potential energy by moving from Location A to Location B?

A. 7.1 x 10^3 J
B. 6.1 x 10^4 J
6.0 x 10^5 J
D. 7.8 x 10^5 J

( I don't know how to put the picture up on here).

Question

A 720 kg roller-coaster car starts off from Location A. Assuming friction does not impede the car's motion, what will be the change in its potential energy by moving from Location A to Location B?

A. 7.1 x 10^3 J
B. 6.1 x 10^4 J
6.0 x 10^5 J
D. 7.8 x 10^5 J

( I don't know how to put the picture up on here).

anonymous · Answer

change in potential energy = mgh
m= 720  g=10 just put the height into the formula
PS- this potential energy will be converted to kinetic energy

anonymous · Answer

Here is the picture. So, you're saying it would be (720)(10)(85)? Which is 612,000. What do I do next?

anonymous · Answer

@divu.mkr

anonymous · Answer

h=85m
just put the height in the formula

anonymous · Answer

Okay, thank you