An angry child throws a toy straight up at the ceiling with an initial velocity of 5.2 m/s. It travels up, stops before hitting the ceiling, and hits the ground below the height at which it was thrown. What was the original height of the toy (when it was thrown) if it
takes 1.2 seconds to hit the ground?

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

c) a core temperature of only ten thousand kelvin