How far can you get away from your little brother with the squirt gun filled with paint if you can travel at 6 m/s and you have 10 seconds before he sees you?

a and c

c is 100% but i am confused in a

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