Question

A rollercoaster car moves along a track as shown

Answer 1

Correct option is a 20m

Speed at point B -√ 2 gh

= √ 2 × 10 × ( 25 - 5 ) = 10 √ 2 ms

For minimum radius of curvature r,

mv 2 r - mg

r - 200 by 10 - 20