a fish tank is a cuboid,100cm by 60cm by 40cm. it is partly filled with water, so that when it is resting on a 60cm edge, the water level reaches the top edge and the midpoint of the base, as shown. what will the height of the water be when the tank is resting on its base(100cm by 60cm face)?

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