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A dolphin is swimming under water at a constant speed of 4.50ms-1.
(a) The dolphin strikes the bottom of a floating ball so that the ball rises vertically upwards from
the surface of the water, as illustrated in Fig. 2.1.
h
path of
ball
height of
ball above
surface
ball
surface of water
speed 5.6 ms-11
Fig. 2.1
The ball leaves the water surface with speed 5.6 ms 1.
Assume that air resistance is negligible.
(0)
Calculate the maximum height reached by the ball above the surface of the water.