Answer:
346.70015 m/s
Explanation:
In the x axis speed is
[tex]v_x=149\ m/s[/tex]
In the y axis
[tex]v_y=\sqrt{2gh}\\\Rightarrow v_y=\sqrt{2\times 9.8\times 5000}[/tex]
The resultant velocity is given by
[tex]v=\sqrt{v_x^2+v_y^2}\\\Rightarrow v=\sqrt{149^2+2\times 9.8\times 5000}\\\Rightarrow v=346.70015\ m/s[/tex]
The magnitude of the overall velocity of the hamper at the instant it strikes the surface of the ocean is 346.70015 m/s