Question

A roller coaster on a frictionless track starts with an initial speed at the top of a 6 m high hill. It coasts down the hill, then up the next hill to a height of 10m. What was the roller coaster's initial speed?

Answer 1

Explanation:

4mg=mv2

4g=v^2

v=2√g meter/sec

Answer 2

Answer:

hehe solly

Explanation:

kinetic energy

The kinetic energy of the roller coaster increases as the coaster goes up a hill and can be converted to potential energy. This potential energy allows the coaster to do different things.