Question

On a roller coaster loop with a radius of 50m, what speed would the car have to travel as it enters the loop to make sure that it goes over the top? Ignore friction.

Answer 1

a. 45ms-1
b. 31.3ms-1
c. 980m/s
d. 500m/s

Answer 2

speed is distance over time.

if the radius is 50m, to find the distance, find the circumference. but there is no time given. .

Answer 3

Thank you very much!