A roller coaster comes over a hill with a height of 50.0m and is moving at a speed of 5.00m/s. What is the speed of the roller coaster when it is 10.0m above the ground?

Question

A roller coaster comes over a hill with a height of 50.0m and is moving at a speed of 5.00m/s. What is the speed of the roller coaster when it is 10.0m above the ground?

Please show work

Thank you

Answer 1

Ricky

You can just use v²=u²+ 2as

v is the speed 10m above the ground (to be found)

u is the speed at the top of the hill (5 m/s)

a is the acceleration due to gravity (9.8 m/s/s)

s is the distance fallen (40m)

Mike