3. On his fishing trip, Justin rides his boat 12 km south in 15 minutes. The fish aren't biting so they go 4 km west in 10 minutes. They then follow a school of fish 1 km north for 5 minutes,
Find the following:
a. The total distance he travelled in km:
b. His displacement in km:
C. The speed when he travelled south in km/hr.
d. The speed when he travelled west in km/hr.
e. His average speed in km/hr:
f. His velocity (in km/hr) for the trip:

the correct choice is a .

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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