IOITTU
An airplane is flying at a height of 500 m with a
velocity of 72 km/h over a flood affected are. Food
packets are to be dropped for the people standing at a
particular dry point. At what horizontal distance from
that place should the food packets be released from
the plane so as to reach the intended place? Illustrate
your calculations with diagram.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?