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1. When the particle is travelling upward, 圖片參考：http://i182.photobucket.com/albums/x4/A_Hepburn_1990/A_Hepburn03Dec281257.jpg?t=1198817873 When the particle travels downward...
...the as the square of the time taken.A body starting from rest falls 45m in 3 seconds. let d be the distance t be the time as d # t^2 let d = kt^2 , where k is constant...
...rate change of displacement. but for a easier understanding in a free falling object, distance is equivalent to displacement in our case. 2012-01-27 05:30...
...through its apex at a constant rate of π cm^3s^-1 a) Let Vcm^3 be the volume of water in the vessel when the...π h^3/9 b) How fast is the water level falling when the depth of water is 4 cm? dV/dt...
...4x^2+x+6 f'(x)=3x^2-8x+1 f''(x)=6x-8 Let f'(x)=0 3x^2-8x+1=0 x=2.5352 or x=0.1315 when... coefficient is positive, so the graph falls to the left and rises to the right.That...
1.What number exceeds 25 by the same amount as it falls shorts of 49? Let the number be x, so the difference between x and 25 = the difference between 49 and...
Q1. Let the number be x. Let x exceeds 25 by y, therefore, x - 25 = y.............(1) So x falls short of 49 also by y, that is 49 - x = y.......(2) From (1) and (2...
(1) Let v = Vertical component of initial velocity u = Horizontal component of...photobucket.com/albums/o61/billy_hywung/Mar08/Crazyapp1.jpg (2) Let u = Initial velocity θ = Angle of elevation of projection 圖片參考...
dh/dt=(-48(h)^0.5)/A. Integ [A/(-48(h)^0.5)] dh = Integ [1] dt h(m) 丨１０丨１１丨１２ 丨１３丨１４丨 A(m2) 丨 950 丨1070丨 1200 丨1350丨1530丨 A/(-48(h)^0.5) 丨-6.259丨-6.721丨-7.217丨-7.8丨-8.519丨...
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