I am going to need a picture for this question
maximum allowed value of the speed in roller coaster is given as

now from kinematics we can say

here initial speed will be

acceleration is due to gravity

now we can use this to find the height



so maximum allowed height will be 20.4 m
It's velocity when it strikes the ground is. D. 232.9 kg.m/s<span>.
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I hope this helps!!!
Answer:
Explanation:
It is said to be in equilibrium about the fulcrum . It is the principle of moments.