A term, coined by Dr. Kenneth Cooper in the 1960's, used to refer to teh positive impact of exercise over a period of time on muscles, metabolism, heart health, and blood pressure?

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

k2s for potassium sulphide