(PLEASE HELP) Which of the following describes a mixture?

A. Matter that is composed of a single element and has all the same physical properties
B. Matter that is made of molecules of all the same type
C. Two atoms chemically bonded together
D. A substance made of two or more types of atoms that are not chemically bonded

D. A substance made of two or more types of atoms that are not chemically bonded

Explanation:

just took the test and got the answer right

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