Question

A roller coaster car moves on a track with one section that is a vertical circular loop of radius R. When the car is at the top of the loop it just maintains contact with the track. What is the car’s acceleration at this point?

(a) g upward
(b) g downward
(c) 0.5 g upward
(d) Zero

no explanation please, just tell me the correct option.

Answer 1

Answer:

a

Explanation:

thank you ❤️❤️

I am not at all sure if this answer is correct or wrong