Second Third
H
End
ride
A 650-kilogram roller coaster starts from rest at the top of at the first hill and glides down the track without friction. The
vertical heights of the first second and thirds hills are 90m, 60m and 30m, respectively. Neglect friction and air
resistance.
OG

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.