The main reason is becouse these people are over 200 pounds and no mater how strong you are arms arnt ment to keep you up thanks.
A) 140 degrees
First of all, we need to find the angular velocity of the Ferris wheel. We know that its period is
T = 32 s
So the angular velocity is

Assuming the wheel is moving at constant angular velocity, we can now calculate the angular displacement with respect to the initial position:

and substituting t = 75 seconds, we find

In degrees, it is

So, the new position is 140 degrees from the initial position at the top.
B) 2.7 m/s
The tangential speed, v, of a point at the egde of the wheel is given by

where we have

r = d/2 = (27 m)/2=13.5 m is the radius of the wheel
Substituting into the equation, we find

What are you exactly asking for? A solution that feels slippery? That could mean anything. Please explain a little bit more.
Let's convert the quantities in SI units first.
The force exerted by the horse is

and the distance covered is

Therefore, the work done by the horse is equal to the product between the force applied and the distance: