Homework Help: Physics

Posted by sam on Monday, September 24, 2012 at 11:43pm.

A plane drops hamper of medical supplies from a height of 2740m during a practice run over the ocean. The plane's horizontal velocity was 126m/s at the instant the hamper was dropped.
What is the magnitude of the overall velocity of the hamper at the instant it strikes the surface of the ocean?
The acceleration of gravity is 9.8m/s^2.
Answer in units of m/s.

Physics - drwls, Tuesday, September 25, 2012 at 2:39am
The vertical velocity component, after impact from height H, is sqrt(2*g*H)
H = 2740 m in this case.

The horizontal velocity component is 126 m/s

Use the Pythagorean Theorem for the speed (velocity magnitude).

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