(Look at the attachment below for the relevant diagram of slopes A, B and C) A trolley is pushed towards slope A and released at velocity v. Its midpoint ‘x’ comes to a halt 20 cm up the slope.
a) How far up the slopes B and C will the trolley go if it is pushed to the same starting speed?
b) Does the trolley stop most quickly in case A, B or C? Explain your answer.

their crystal patterns have been disrupted by stress

i don't understand. explain it clearly

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