Adragster starting from rest accelerates at 49 m/s/s. how fast is it going when it has traveled 325 m? i can plug all the variables in, i just need to know what formula to use. any suggestions?

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