%) Problem 9: ke 5.6 m below. An eagle is flying horizontally at a speed of 3.5

Question

%) Problem 9: ke 5.6 m below. An eagle is flying horizontally at a speed of 3.5 m/s when the fish in her talons wiggles loose 50% Part (a) Calculate the magnitude of the velocity of the fish relative to the water when it hits the water in ms. Grade S Deduction Potential vEl sinO cos0 tano 7 8 9 cotan0 asin acos0 atan0 acotan0 sinh0 cosh) tanh cotanh0 Attempts 3%per O Degrees O Radians Submit I give up ints: 1% deduction per hint. Hints remaining: 4 Feedback: 0deduction per feedback. S0% Part (b) Calculate the angle, in degrees, by which the fish's velocity is directed below the horizontal when the fish hits the wat

Explanation / Answer

a) Vx = 3.5 m/s

Vy = -sqrt [2 g h] = sqrt [2 * 9.8 * 5.6] = -10.48 m/s

V = sqrt [Vx2 + Vy2] = sqrt [3.52 + 10.482]

magnitude of the velocity = 11.0 m/s

b) theta = tan-1(Vy / Vx) = tan-1(-10.48 / 3.5)

= -71.5 deg

phi = 360 - 71.5 = 288.5 deg

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