A hummingbird can tly at?speed Oe 30 mph, and can visit up to 100U towers per da

Question

A hummingbird can tly at?speed Oe 30 mph, and can visit up to 100U towers per day. The positions ot me ot those tlowers are shown otove, liid out on a grd. Note that each or the 16 squares or the grid measure5 3.0g m by 3.00 m, Our hummingbird starts at fower 1, ends at lower 5, and ren ore flower to the next visits the flowers in the fellowing orer:1-2-3-4-5. A tatal of 56.0 5 elapses between the time the hummingbird leaves flower 1 and arrives at the last flawer, and the hummingblrd always travels In a straight lin Tiex.en (a) What Is the magntude of the hurnningblrd's averag vekidty, fr the 55.0s mys. b) What Is the hummingbird's average speed, for the 55,0 ?

Explanation / Answer

A.

Net displacement=straight line sistance between 1 and 5= (3^2+ 6^2)^0.5= 10.817 m/s

Average velocity given by

Vav= net displacement/time= 10.817/56 = 0.193 m/s

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B.

Distance between 1-2

D12= (9^2+3^2)^0.5= 9.487 m

Distance between 2-3

D23= (3^2+9^2)= 9.487 m

Distance between 3-4

D34= (9^2+3^2)^0.5= 9.487 m

Distance between 4-5

D45= (6^2+3^2)^0.5= 6.71 m

Av speed= total distance/total time

= (D12+D23+D34+ D45)/t

=( 3*9.487+ 6.71)/56

= 0.628 m/s

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Comment in case any doubt..goodluck

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