Homework Help: Physics

Posted by Jake Penn on Saturday, November 10, 2012 at 9:42am.

A hummingbird ﬂies 1.6 m along a straight
path at a height of 5.4 m above the ground. Upon spotting a ﬂower below, the hummingbird drops directly downward 2.4 m to hover in front of the ﬂower.

A.) What is the magnitude of the hummingbird’s total displacement? Answer in units of m

B.)How many degrees below the horizontal is this total displacement? Answer in units of ◦

Physics - Henry, Monday, November 12, 2012 at 2:12pm
A. D^2 = X^2 + Y^2.
D^2 = (1.6)^2 + (-2.4)^2 = 8.32
D = 2.88 m.

B. tanA = Y/X = -2.4/1.6 = -1.5
A = -56.3o = 56.3o below the hor.

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