If a 200kg cart starts at point A, what is its potential energy? PE=mgh g=9.8 A. 28,000 J B. 274,400 J C. 2,660,000 J D. 1,960 J

B or 274,400

Explanation:the reason it is 274,400 is because I said so, no i'm just playing with you the actuall reason it is that is because if you take the cart's weight and then think and remember what you were taught in the 8th grade you will get your answer.

answera compound;

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft