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March 29, 2015

Homework Help: Physics

Posted by Abdullahi A. on Friday, May 3, 2013 at 8:32pm.

As a fish jumps vertically out of the water, assume that only two significant forces act on it: an upward force F exerted by the tail fin and the downward force due to gravity. A record Chinook salmon has a length of 1.50 m and a mass of 53.5 kg. If this fish is moving upward at 3.00 m/s as its head first breaks the surface and has an upward speed of 6.20 m/s after two-thirds of its length has left the surface, assume constant acceleration and determine the following.
(a) the salmon's acceleration?
(b) the magnitude of the force F during this interval?

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