30) When you press a piano key, a hammer strikes a very tight cable to produce a clear tone. How does the cable that produces a low note compare to one the produces a high note? a) (A) The low note cable is thinner or shorter than the high note cable.
b) (B) The low note cable is longer or thicker than the high note cable.
c) (C) The cables are the same, but the hammer that produces the low note is heavier.
d) (D) The cables are the same, but the hammer that produces the low note is lighter.

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

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