Anew roller coaster contains a loop-the-loop in which the car and rider are completely upside down. if the radius of the loop is 13.2 m, with what minimum speed must the car traverse the loop so that the rider does not fall out while upside down at the top? assume the rider is not strapped to the car. group of answer choices 10.1 m/s 11.4 m/s 14.9 m/s 12.5 m/s

11.4 m/s

Explanation:

The expression for the Centripetal acceleration is :

Where, a is the accleration

v is the velocity around circumference of circle

R is radius of circle

In the given question,

a = g = Acceleration due to gravity as the car is at top =

v = ?

R = 13.2 m

So,

v = 11.4 m/s

it may be wrong but i think its a

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.